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Reference List: Author/Authors

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Note:  This page reflects the latest version of the APA Publication Manual (i.e., APA 7), which released in October 2019. The equivalent resource for the older APA 6 style  can be found here .

The following rules for handling works by a single author or multiple authors apply to all APA-style references in your reference list, regardless of the type of work (book, article, electronic resource, etc.).

Note:  Because the information on this page pertains to virtually all citations, we've highlighted a few important differences between APA 6 and APA 7 with underlined notes written in red.

Single Author

Last name first, followed by author initials.

Ahmed, S. (2012).  On being included: Racism and diversity in institutional life . Duke University Press.

Two Authors

List by their last names and initials. Separate author names with a comma. Use the ampersand instead of "and."

Soto, C. J., & John, O. P. (2017). The next big five inventory (BFI-2): Developing and assessing a hierarchical model with 15 facets to enhance bandwidth, fidelity, and predictive power. Journal of Personality and Social Psychology , 113 (1), 117-143. http://dx.doi.org/10.1037/pspp0000096

Three to Twenty Authors

List by last names and initials; commas separate author names, while the last author name is preceded again by ampersand.  This is a departure from APA 6, which only required listing the first six authors before an ellipsis and the final author's name.

Nguyen, T., Carnevale, J. J., Scholer, A. A., Miele, D. B., & Fujita, K. (2019). Metamotivational knowledge of the role of high-level and low-level construal in goal-relevant task performance. Journal of Personality and Social Psychology, 117 (5), 879-899. http://dx.doi.org/10.1037/pspa0000166

More Than Twenty Authors

List by last names and initials; commas separate author names. After the first 19 authors’ names, use an ellipsis in place of the remaining author names. Then, end with the final author's name (do not place an ampersand before it). There should be no more than twenty names in the citation in total.

Pegion, K., Kirtman, B. P., Becker, E., Collins, D. C., LaJoie, E., Burgman, R., Bell, R., DelSole, R., Min, D., Zhu, Y., Li, W., Sinsky, E., Guan, H., Gottschalck, J., Metzger, E. J., Barton, N. P., Achuthavarier, D., Marshak, J., Koster, R., . . .  Kim, H. (2019). The subseasonal experiment (SubX): A multimodel subseasonal prediction experiment. Bulletin of the American Meteorological Society , 100 (10), 2043-2061. https://doi.org/10.1175/BAMS-D-18-0270.1

Group Author

Group authors can include corporations, government agencies, organizations, etc; and a group may publish in coordination with individuals. Here, you simply treat the publishing organization the same way you'd treat the author's name and format the rest of the citation as normal. Be sure to give the full name of the group author in your reference list, although abbreviations may be used in your text.

Entries in reference works (  e.g. dictionaries, thesauruses, and encyclopedias) without credited authors are also considered works with group authors.

Merriam-Webster. (2008). Braggadocio. In Merriam-Webster’s Advanced Learner’s English Dictionary . Merriam-Webster.

When a work has multiple layers of group authorship (e.g. The Office of the Historian, which is a part of the Department of State, publishes something), list the most specific agency as the author and the parent agency as the publisher.

Bureau of International Organization Affairs. (2018). U.S. contributions to international organizations, 2017 [Annual report]. U.S. Department of State. https://www.state.gov/u-s-contributions-to-international-organizations/

Unknown Author

When the work does not have an author move the title of the work to the beginning of the references and follow with the date of publication. Only use “Anonymous ” if the author is the work is signed “Anonymous.” This is a new addition to APA 7.

Merriam-Webster's collegiate dictionary (11th ed.). (2003). Merriam-Webster.

NOTE : When your essay includes parenthetical citations of sources with no author named, use a shortened version of the source's title instead of an author's name. Use quotation marks and italics as appropriate. For example, parenthetical citations of the source above would appear as follows: ( Merriam-Webster's , 2003).

Two or More Works by the Same Author

Use the author's name for all entries and list the entries by the year (earliest comes first). List references with no dates before references with dates.

Urcuioli, P. J. (n.d.).

Urcuioli, P. J. (2011). 

Urcuioli, P. J.  (2015).

When an author appears both as a sole author and, in another citation, as the first author of a group, list the one-author entries first.

Agnew, C. R. (Ed.). (2014). Social influences on romantic relationships: Beyond the dyad . Cambridge University Press.

Agnew, C. R., & South, S. C. (Eds.). (2014). Interpersonal relationships and health: Social and clinical psychological mechanisms. Oxford University Press.

References that have the same first author and different second and/or third authors are arranged alphabetically by the last name of the second author, or the last name of the third if the first and second authors are the same.

Arriaga, X. B., Capezza, N. M., Reed, J. T., Wesselman, E. D., & Williams, K. D. (2014). With partners like you, who needs strangers?: Ostracism involving a romantic partner. Personal Relationships, 21(4) , 557-569.

Arriaga, X. B., Kumashiro, M., Finkel, E. J., VanderDrift, L. E., & Luchies, L. B. (2014). Filling the void: Bolstering attachment security in committed relationships. Social Psychological and Personality Science, 5 (4), 398-405.

Two or More Works by the Same Author in the Same Year

If you are using more than one reference by the same author—or the same group of authors listed in the same order—published in the same year, first check to see if they have more specific dates ( this recommendation is new to APA 7) . Works with only a year should be listed before those with a more specific date. List specific dates chronologically.  If two works have the same publication date, organize them in the reference list alphabetically by the title of the article or chapter. If references with the same date are identified as parts of a series (e.g. Part 1 and Part 2), list them in order of their place in the series. Then assign letter suffixes to the year. Refer to these sources in your essay as they appear in your reference list, e.g.: "Berndt (2004a) makes similar claims..."

Berndt, T. J. (2004a).  Children’s friendships: Shifts over a half-century in perspectives on their development and their effects.  Merrill Palmer Quarterly, 50 (3) , 206-223.

Berndt, T. J. (2004b).  Friendship and three A’s (aggression, adjustment, and attachment).  Journal of Experimental Child Psychology, 88 (1) , 1-4.

Introductions, Prefaces, Forewords, and Afterwords

Cite the publishing information about a book as usual, but cite Introduction, Preface, Foreword, or Afterword (whatever title is applicable) as the chapter of the book.

Lang, J. M. (2018). Introduction. In Dujardin, G., Lang, J. M., & Staunton, J. A. (Eds.), Teaching the literature survey course (pp. 1-8). West Virginia University Press.

APA 7th Edition Citation Guide

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What is an Annotated Bibliography?

An annotated bibliography is a list of the sources used to research a topic, where each citation is followed by a short paragraph (~150 words) that informs the reader of the source's relevance, accuracy, and quality. These annotations are a great place to summarize each source for your readers and tell them why that source was useful to you, or even why it was not.

Annotated Bibliography Example:

Duarte, F., & Ratti, C. (2018). The impact of autonomous vehicles on cities: A review.  Journal of Urban Technology, 25 (4), 3-18. https://doi.org/10.1080/10630732.2018.1493883 Duarte and Ratti, researchers at Pontifícia Universidade Católica do Paraná and MIT, respectively, argue that the adoption of autonomous vehicles (AVs) represents an opportunity to embrace urban transformation. Cities were designed to incorporate the rise of the automobile, and the authors urge city planners, administrators, policymakers, and engineers to use the major technological advancements in AVs to rethink how cities are designed. The article poses crucial questions (such as will AVs lead to more or fewer cars on the road, how will AVs affect parking, and how AVs impact urban sprawl) that will be essential considerations as cities begin to grapple with the advances in AVs and how to best implement change to improve urban life. Overall it was a thoughtful and insightful piece covering the history of vehicles influencing city planning and how the future might be impacted by AVs.

Creating Annotated Bibliographies

Use the following guides to create an APA-formatted Annotated Bibliography.

Always use the specifications determined by your instructor in addition to these guidelines.

• How to Prepare The Annotated Bibliography Tips on creating an annotated bibliography from Cornell University Library.
• Annotated Bibliography This site from the Writing Center at The University of Wisconsin-Madison describes the different types of annotated bibliographies and what should be included in them (Indicative, Informative, Evaluative, Combination).
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APA Citation Guide (7th Edition): Annotated Bibliography

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Annotated Bibliography

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An  annotated bibliography  is a list of citations for various books, articles, and other sources on a topic. The annotated bibliography looks like a References page but includes an annotation after each source cited. An annotation is a short summary and/or critical evaluation of a source. Annotated bibliographies can be part of a larger research project, or can be a stand-alone report in itself.

Basic Tips on Formatting

• Start with the same format as a regular References list.
• The first line of the citation starts at the left margin and subsequent lines are indented 0.5 inches (hanging indent).
• The annotation begins on a new line and is indented 0.5 inches from the left margin.
• Entries are double-spaced with no extra lines between entries.
• If the annotation consists of more than one paragraph, indent the first line of each successive paragraph an additional 0.5 inches.
• Use the third person (e.g., he, she, the author) instead of the first person (e.g., I, my, me).

Sample Evaluative Annotation

Maak, T. (2007). Responsible leadership, stakeholder engagement, and the emergence of social capital.  Journal of Business Ethics ,  74 , 329-343. https://doi.org/10.1007/s10551-007-9510-5

This article focuses on the role of social capital in responsible leadership. It looks at both the social networks that a leader builds within an organization, and the links that a leader creates with external stakeholders. Maak’s main aim with this article seems to be to persuade people of the importance of continued research into the abilities that a leader requires and how they can be acquired. The focus on the world of multinational business means that for readers outside this world many of the conclusions seem rather obvious (be part of the solution not part of the problem). In spite of this, the article provides useful background information on the topic of responsible leadership and definitions of social capital which are relevant to an analysis of a public servant.

Useful Links for Annotated Bibliographies

The formatting of annotated bibliographies can vary. The University Libraries recommend the format exhibited in the examples below, but if you are still unsure what format to use, ask your professor. 

• Includes a sample of one APA annotation (from the Purdue OWL).
• A guide covering the basics of writing an annotated bibliography.
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How to Write an Annotated Bibliography - APA Style (7th Edition)

What is an annotation, how is an annotation different from an abstract, what is an annotated bibliography, types of annotated bibliographies, descriptive or informative, analytical or critical, to get started.

An annotation is more than just a brief summary of an article, book, website, or other type of publication. An annotation should give enough information to make a reader decide whether to read the complete work. In other words, if the reader were exploring the same topic as you, is this material useful and if so, why?

While an abstract also summarizes an article, book, website, or other type of publication, it is purely descriptive. Although annotations can be descriptive, they also include distinctive features about an item. Annotations can be evaluative and critical as we will see when we look at the two major types of annotations.

An annotated bibliography is an organized list of sources (like a reference list). It differs from a straightforward bibliography in that each reference is followed by a paragraph length annotation, usually 100–200 words in length.

Depending on the assignment, an annotated bibliography might have different purposes:

• Provide a literature review on a particular subject
• Help to formulate a thesis on a subject
• Demonstrate the research you have performed on a particular subject
• Provide examples of major sources of information available on a topic
• Describe items that other researchers may find of interest on a topic

There are two major types of annotated bibliographies:

A descriptive or informative annotated bibliography describes or summarizes a source as does an abstract; it describes why the source is useful for researching a particular topic or question and its distinctive features. In addition, it describes the author's main arguments and conclusions without evaluating what the author says or concludes.

For example:

McKinnon, A. (2019). Lessons learned in year one of business.  Journal of Legal Nurse Consulting ,  30 (4), 26–28. This article describes some of the difficulties many nurses experience when transitioning from nursing to a legal nurse consulting business. Pointing out issues of work-life balance, as well as the differences of working for someone else versus working for yourself, the author offers their personal experience as a learning tool. The process of becoming an entrepreneur is not often discussed in relation to nursing, and rarely delves into only the first year of starting a new business. Time management, maintaining an existing job, decision-making, and knowing yourself in order to market yourself are discussed with some detail. The author goes on to describe how important both the nursing professional community will be to a new business, and the importance of mentorship as both the mentee and mentor in individual success that can be found through professional connections. The article’s focus on practical advice for nurses seeking to start their own business does not detract from the advice about universal struggles of entrepreneurship makes this an article of interest to a wide-ranging audience.

An analytical or critical annotation not only summarizes the material, it analyzes what is being said. It examines the strengths and weaknesses of what is presented as well as describing the applicability of the author's conclusions to the research being conducted.

Analytical or critical annotations will most likely be required when writing for a college-level course.

McKinnon, A. (2019). Lessons learned in year one of business.  Journal of Legal Nurse Consulting ,  30 (4), 26–28. This article describes some of the difficulty many nurses experience when transitioning from nursing to a nurse consulting business. While the article focuses on issues of work-life balance, the differences of working for someone else versus working for yourself, marketing, and other business issues the author’s offer of only their personal experience is brief with few or no alternative solutions provided. There is no mention throughout the article of making use of other research about starting a new business and being successful. While relying on the anecdotal advice for their list of issues, the author does reference other business resources such as the Small Business Administration to help with business planning and professional organizations that can help with mentorships. The article is a good resource for those wanting to start their own legal nurse consulting business, a good first advice article even. However, entrepreneurs should also use more business research studies focused on starting a new business, with strategies against known or expected pitfalls and issues new businesses face, and for help on topics the author did not touch in this abbreviated list of lessons learned.

Now you are ready to begin writing your own annotated bibliography.

• Choose your sources - Before writing your annotated bibliography, you must choose your sources. This involves doing research much like for any other project. Locate records to materials that may apply to your topic.
• Review the items - Then review the actual items and choose those that provide a wide variety of perspectives on your topic. Article abstracts are helpful in this process.
• The purpose of the work
• A summary of its content
• Information about the author(s)
• For what type of audience the work is written
• Its relevance to the topic
• Any special or unique features about the material
• Research methodology
• The strengths, weaknesses or biases in the material

Annotated bibliographies may be arranged alphabetically or chronologically, check with your instructor to see what he or she prefers.

Please see the  APA Examples page  for more information on citing in APA style.

• Last Updated: Aug 8, 2023 11:27 AM
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Creating an Annotated Bibliography

• What is an Annotated Bibliography

Writing an Annotation

Formatting an annotated bibliography.

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• Creating an Annotated Bibliography Video

Components of an Annotated Bibliography

An annotated bibliography is an APA reference list that includes a brief summary and analysis -- the annotation --  under the reference entry.  

An annotated bibliography includes:

• APA Title page
• Pages are numbered beginning with title page
• References centered and bolded at top of page
• Entries listed in alphabetical order
• Annotations begin under its associated reference
• Annotations are indented 0.5 inches from the left margin
• The entire document is double spaced; no extra space between entries

Example of an annotated bibliography entry:

An  an n otated bibliography is composed of the full APA reference for a source followed by notes and commentary about that so urce. T he word  “annotate” means “critical or explanatory notes” and the word “bibliography” means “a list of sources”.  Annotation s are meant to be critical in addition to being descriptive.

Annotations are generally between five to seven sentences in length and appear directly under the APA reference.  The entire annotation is indented 0.5 inch from the left margin and lines up with the hanging indent of the APA reference.

Use the question prompts below as a guide when writing annotations:

• 2 to 4 sentences to  summarize   the main idea(s) of the source.

     - What are the main arguments?

     - What is the point of this book/article?

     - What topics are covered?

• 1 or 2 sentences to  assess   and  evaluate   the source.

     - How does it compare with other sources in your bibliography?

     - Is this information reliable? current?

     - Is the author credible? have the background to write on this topic?

     - Is the source objective or biased?

• 1 or 2 sentences to  reflect   on the source.

     - Was this source helpful to you?

     - How can you use this source for your research project?

     - Has it changed how you think about your topic?

• a title page, and
• the annotated bibliography which begins on its own page with the word References bolded and centered at the top of the page.

Each entry begins with an APA reference for the resource with the annotation appearing directly beneath. The entire annotation is indented 0.5 inches from the left margin.

Entries are listed in alphabetical order. The entire document is typed on one of the six approved font styles and sizes and is double spaced.  There is no additional space between entires.

Consider using Academic Writer or NoodleTools to create and format your annotated bibliography.  

APA Citation Style Resources and Tools

Apa academic writer.

Use the tools in the  References tab to create APA references for the resources in your annotated bibliography.  The form includes a text box for your annotation.  You can create your title page and assemble your annotated bibliography in the Write tab in this authoritative resource.

• APA Academic Writer This link opens in a new window Formerly APA Style Central, Academic Writer is a digital library of quick APA guides and tutorials: - Learn - view videos and tutorials, test your APA knowledge with quizzes, and view sample papers, references, tables, and figures. - Reference - view tutorials, search APA dictionaries, develop research ideas, plan and track your research, and manage your references. - Write - use templates to write papers (includes step-by-step help), and work on saved papers. (Must create a personal account to use.)

Create and format your annotated bibliography in NoodleTools .  Find information on how to create an account, create APA references, and creating and formatting an annotated bibliography in the NoodleTools Guide.

This video below provides an overview of how to create an annotated bibliography including evaluating resources, writing annotations, creating APA references, and formatting the final document in the APA style. 

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More examples

• Annotated bibliography example - UNT Dallas Library
• Annotated bibliography template - UNT Dallas Library
• APA 7th Edition Publication Manual - Sample Annotated Bibliography (See Fig. 9.3, p. 308)

What is an annotated bibliography?

An annotated bibliography is an organized list of sources, each of which is followed by a brief note or “annotation.”

These annotations do one or more of the following:

• describe the content and focus of the book or article
• suggest the source’s usefulness to your research
• evaluate its method, conclusions, or reliability
• record your reactions to the source.

The process of writing an annotated bibliography provides a structured process to learn about a research topic. It causes you to read the available research (also referred to as "the literature") more closely as you develop a better understanding of the topic, related issues, and current trends. 

Source: The University of Wisconsin-Madison: The Writing Center

Writing a strong annotation

The hardest part of this assignment is writing the annotation, but knowing what it entails can make this task less daunting.

While not all of these are necessary, an annotation could/will:

• Summarize the central theme and scope of the document
• Evaluates the authority, credibility, and/or background of the author(s)
• Comments on the intended audience (who was meant to read the document)
• Assesses the source’s strengths and weaknesses (Interesting? Helpful? Strong/weak argument? Strong/weak evidence?)
• Compares or contrast this work with others you have cited
• Critiques the relevance, accuracy, and quality of the source
• Evaluates the methods, conclusions/findings, and reliability of the source
• Shares how the source reinforces or contradicts your own argument
• Records your reactions to the reading
• States how the source will be used in your paper

Source:  UNT Dallas Learning Commons: Annotated Bibliography

Formatting rules

General Formatting Rules:

• Format and order references in alphabetical order just as you would a reference list
• Each annotation should be a new paragraph below its reference entry
• Indent the entire annotation 0.5 inch from the left margins just as you would a block quotation
• If the annotation spans multiple paragraphs, indent the first line of the second and any subsequent paragraphs an addition 0.5 inch the same as you would a block quotation with multiple paragraphs  

Source: Section 9.51 Annotated Bibliographies in the APA 7th Edition Publication Manual

Sample annotated bibliography

Excelsior OWL Sample Annotated Bibliography

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American Psychological Association (APA) Annotations

Creating an annotated bibliography in APA style

The Publication Manual of the American Psychological Association 6th edition (APA Manual) is kept behind the iDesk on the First Floor.

This example is based on the APA style guide, but your instructor might give you other formatting instructions . 

General guidelines

Some annotations are merely descriptive , summarizing the authors' qualifications, research methods, and arguments. 

Many annotations evaluate the quality of scholarship in a book or article.  You might want to consider the logic of authors' arguments, and the quality of their evidence.  Your findings can be positive, negative, or mixed.

Your professor might also want you to explain why the source is relevant to your assignment. 

Sample Page: APA-formatted annotated bibliography

Rules! rules! rules!

The Publication Manual of the American Psychological Association (6th ed.) states the following formatting rules:

• The text and the reference list should be double-spaced.
• Numbering starts on the title page, at the top right of the page.
• Reference list entries must have a hanging indent (to do this in Microsoft Word 2003, click Format, then Paragraph, then Special, and choose Hanging).
• There should be 1 inch (2.54 cm) margins all around (top, bottom, left, and right) on each page.
• Use Times Roman font, or a similar serif font.
• Each paragraph should be indented.

More Sample Annotations

• Annotated Bibliographies- Purdue OWL

The Memorial University of Newfoundland presents these examples of both descriptive and critical annotations .

Cornell University Library offers these instructions on preparing an annotated bibliography.

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• What Is an Annotated Bibliography? | Examples & Format

What Is an Annotated Bibliography? | Examples & Format

Published on March 9, 2021 by Jack Caulfield . Revised on August 23, 2022.

An annotated bibliography is a list of source references that includes a short descriptive text (an annotation) for each source. It may be assigned as part of the research process for a paper , or as an individual assignment to gather and read relevant sources on a topic.

Scribbr’s free Citation Generator allows you to easily create and manage your annotated bibliography in APA or MLA style. To generate a perfectly formatted annotated bibliography, select the source type, fill out the relevant fields, and add your annotation.

An example of an annotated source is shown below:

Table of contents

Annotated bibliography format: apa, mla, chicago, how to write an annotated bibliography, descriptive annotation example, evaluative annotation example, reflective annotation example, finding sources for your annotated bibliography, frequently asked questions about annotated bibliographies.

Make sure your annotated bibliography is formatted according to the guidelines of the style guide you’re working with. Three common styles are covered below:

In APA Style , both the reference entry and the annotation should be double-spaced and left-aligned.

The reference entry itself should have a hanging indent . The annotation follows on the next line, and the whole annotation should be indented to match the hanging indent. The first line of any additional paragraphs should be indented an additional time.

In an MLA style annotated bibliography , the Works Cited entry and the annotation are both double-spaced and left-aligned.

The Works Cited entry has a hanging indent. The annotation itself is indented 1 inch (twice as far as the hanging indent). If there are two or more paragraphs in the annotation, the first line of each paragraph is indented an additional half-inch, but not if there is only one paragraph.

Chicago style

In a  Chicago style annotated bibliography , the bibliography entry itself should be single-spaced and feature a hanging indent.

The annotation should be indented, double-spaced, and left-aligned. The first line of any additional paragraphs should be indented an additional time.

Scribbr Citation Checker New

The AI-powered Citation Checker helps you avoid common mistakes such as:

• Missing commas and periods
• Incorrect usage of “et al.”
• Ampersands (&) in narrative citations
• Missing reference entries

For each source, start by writing (or generating ) a full reference entry that gives the author, title, date, and other information. The annotated bibliography format varies based on the citation style you’re using.

The annotations themselves are usually between 50 and 200 words in length, typically formatted as a single paragraph. This can vary depending on the word count of the assignment, the relative length and importance of different sources, and the number of sources you include.

Consider the instructions you’ve been given or consult your instructor to determine what kind of annotations they’re looking for:

• Descriptive annotations : When the assignment is just about gathering and summarizing information, focus on the key arguments and methods of each source.
• Evaluative annotations : When the assignment is about evaluating the sources , you should also assess the validity and effectiveness of these arguments and methods.
• Reflective annotations : When the assignment is part of a larger research process, you need to consider the relevance and usefulness of the sources to your own research.

These specific terms won’t necessarily be used. The important thing is to understand the purpose of your assignment and pick the approach that matches it best. Interactive examples of the different styles of annotation are shown below.

A descriptive annotation summarizes the approach and arguments of a source in an objective way, without attempting to assess their validity.

In this way, it resembles an abstract , but you should never just copy text from a source’s abstract, as this would be considered plagiarism . You’ll naturally cover similar ground, but you should also consider whether the abstract omits any important points from the full text.

The interactive example shown below describes an article about the relationship between business regulations and CO 2 emissions.

Rieger, A. (2019). Doing business and increasing emissions? An exploratory analysis of the impact of business regulation on CO 2 emissions. Human Ecology Review , 25 (1), 69–86. https://www.jstor.org/stable/26964340

An evaluative annotation also describes the content of a source, but it goes on to evaluate elements like the validity of the source’s arguments and the appropriateness of its methods .

For example, the following annotation describes, and evaluates the effectiveness of, a book about the history of Western philosophy.

Kenny, A. (2010). A new history of Western philosophy: In four parts . Oxford University Press.

A reflective annotation is similar to an evaluative one, but it focuses on the source’s usefulness or relevance to your own research.

Reflective annotations are often required when the point is to gather sources for a future research project, or to assess how they were used in a project you already completed.

The annotation below assesses the usefulness of a particular article for the author’s own research in the field of media studies.

Manovich, Lev. (2009). The practice of everyday (media) life: From mass consumption to mass cultural production? Critical Inquiry , 35 (2), 319–331. https://www.jstor.org/stable/10.1086/596645

Manovich’s article assesses the shift from a consumption-based media culture (in which media content is produced by a small number of professionals and consumed by a mass audience) to a production-based media culture (in which this mass audience is just as active in producing content as in consuming it). He is skeptical of some of the claims made about this cultural shift; specifically, he argues that the shift towards user-made content must be regarded as more reliant upon commercial media production than it is typically acknowledged to be. However, he regards web 2.0 as an exciting ongoing development for art and media production, citing its innovation and unpredictability.

The article is outdated in certain ways (it dates from 2009, before the launch of Instagram, to give just one example). Nevertheless, its critical engagement with the possibilities opened up for media production by the growth of social media is valuable in a general sense, and its conceptualization of these changes frequently applies just as well to more current social media platforms as it does to Myspace. Conceptually, I intend to draw on this article in my own analysis of the social dynamics of Twitter and Instagram.

Before you can write your annotations, you’ll need to find sources . If the annotated bibliography is part of the research process for a paper, your sources will be those you consult and cite as you prepare the paper. Otherwise, your assignment and your choice of topic will guide you in what kind of sources to look for.

Make sure that you’ve clearly defined your topic , and then consider what keywords are relevant to it, including variants of the terms. Use these keywords to search databases (e.g., Google Scholar ), using Boolean operators to refine your search.

Sources can include journal articles, books, and other source types , depending on the scope of the assignment. Read the abstracts or blurbs of the sources you find to see whether they’re relevant, and try exploring their bibliographies to discover more. If a particular source keeps showing up, it’s probably important.

Once you’ve selected an appropriate range of sources, read through them, taking notes that you can use to build up your annotations. You may even prefer to write your annotations as you go, while each source is fresh in your mind.

An annotated bibliography is an assignment where you collect sources on a specific topic and write an annotation for each source. An annotation is a short text that describes and sometimes evaluates the source.

Any credible sources on your topic can be included in an annotated bibliography . The exact sources you cover will vary depending on the assignment, but you should usually focus on collecting journal articles and scholarly books . When in doubt, utilize the CRAAP test !

Each annotation in an annotated bibliography is usually between 50 and 200 words long. Longer annotations may be divided into paragraphs .

The content of the annotation varies according to your assignment. An annotation can be descriptive, meaning it just describes the source objectively; evaluative, meaning it assesses its usefulness; or reflective, meaning it explains how the source will be used in your own research .

A source annotation in an annotated bibliography fulfills a similar purpose to an abstract : they’re both intended to summarize the approach and key points of a source.

However, an annotation may also evaluate the source , discussing the validity and effectiveness of its arguments. Even if your annotation is purely descriptive , you may have a different perspective on the source from the author and highlight different key points.

You should never just copy text from the abstract for your annotation, as doing so constitutes plagiarism .

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APA Citation Style, 7th edition: Two Authors or Editors

• General Style Guidelines
• One Author or Editor
• Two Authors or Editors
• Three to Five Authors or Editors
• Article or Chapter in an Edited Book
• Article in a Reference Book
• Edition other than the First
• Translation
• Government Publication
• Journal Article with 1 Author
• Journal Article with 2 Authors
• Journal Article with 3–20 Authors
• Journal Article 21 or more Authors
• Magazine Article
• Newspaper Article
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• Web Page with No Author
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• Youtube Video
• Audio Podcast
• Electronic Image
• Twitter/Instagram
• Lecture/PPT
• Conferences
• Secondary Sources
• Citation Support
• Avoiding Plagiarism
• Formatting Your Paper

About Citing Books

For each type of source in this guide, both the general form and an example will be provided.

The following format will be used:

In-Text Citation (Paraphrase) - entry that appears in the body of your paper when you express the ideas of a researcher or author using your own words.  For more tips on paraphrasing check out The OWL at Purdue .

In-Text Citation (Quotation) - entry that appears in the body of your paper after a direct quote.

References - entry that appears at the end of your paper.

Information on citing and several of the examples were drawn from the Publication Manual of the American Psychological Association (7th ed.).

Book with Two Authors or Editors

The general format below refers to a book with two authors.

If you are dealing with two editors instead of two authors, you would simply insert the names of the editors into the place where the authors' names are now, followed by "(Eds.)" without the quotation marks (see the example below). The rest of the format would remain the same.

General Format

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• << Previous: One Author or Editor
• Next: Three to Five Authors or Editors >>

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Home / Guides / Citation Guides / Citation Basics / Annotated Bibliography Format & Examples

Annotated Bibliography Format & Examples

A complete guide to the mla & apa annotated bibliography.

If you’ve just received an assignment that requires an MLA or APA annotated bibliography, you may be wondering where to start. This guide will help answer all of your questions and includes step-by-step instructions on how to do an annotated bibliography in MLA style, as well as an APA annotated bibliography. You will also find sample annotated bibliographies, real-life examples, and opportunities to practice what you have learned.

The MLA ( Modern Language Association ) and APA (American Psychological Association) are not associated with this guide. All of the information provided here, however, offers direction for students and researchers who use these citation styles in their work.

The structures and annotated bibliography templates on this page were created by the in-house librarians at EasyBib.com.

If you’re simply looking for an example of an annotated bibliography (both in MLA format and APA format), scroll down toward the bottom of the page. We’ve included links to visuals for those of you who need help with the structure and styling of an annotated bibliography. If you’re looking for a variety of annotated bibliography topics, and you’re truly searching for the answer to, “What is an annotated bibliography?” then continue reading!

Here’s a run-through of everything this page includes:

Table of contents

What is an annotated bibliography, annotations vs. abstract, why include annotations.

• Step 1: Analyze your sources

Step 2: Write the descriptions

• Step 3a: Formatting an MLA style annotated bibliography
• Step 3b: Formatting an APA style annotated bibliography

Annotated Bibliography Templates

Using the easybib annotation tool.

A bibliography is a complete list of the sources that were used to complete a research paper or project.

Depending on the style guide you follow, you may also see this called a Works Cited (also called an MLA bibliography) or Reference List (APA format). Each listed source, or citation , shares information about the author, title, publishing year, and other details that serve to credit the original authors whose work informed your research. These details also help other students and researchers find and read the source materials.

When your research is related to a scholastic assignment, you should always verify your instructor’s requirements for the types and number of sources to include, as well as the style you should adhere to when formatting your paper and bibliography.

An MLA annotated bibliography and an APA format annotated bibliography are bibliographies that include a concise explanation, or annotation , of each listed source. Depending on the assignment, this annotation may be solely descriptive, or analytical.

An abstract and annotation should not be confused; they differ in both their substance as well as their placement in a paper.

Annotations: 

• Usually found in bibliographies at the end of a paper
• Are subjective
• Purpose is to summarize and evaluate . It should briefly communicate the work’s main point, but also discuss the background of the author or study, and the strengths/weaknesses of the work.

Abstracts: 

• Usually found in journal databases or the beginning of a paper
• Are objective
• Purpose is to summarize . It should provide a short overview of the article and communicate the main points and themes.

If you would like to learn more , this link further explores the difference between an abstract and an annotation.

This resource provides additional information on how to write a bibliography with annotations in other formats. You can also take advantage of the plagiarism checker and bibliography tools that come with EasyBib Plus to help you create your reference lists.

Before you learn how to make an annotated bibliography, you may be wondering why you need to.

Sometimes instructors want you to create and include annotations in your bibliography, either as part of an assignment or as an assignment unto itself. Understanding the purpose of this approach to your reference list can help to ensure that you gain all of the benefits that the annotated bibliography process provides.

As a student, this method will help you develop or hone your research skills, providing you with practice not only in locating sources but also in analyzing and evaluating them for relevance and quality.

Your instructor will gain insight into your research abilities, as well, allowing them to assess your work more thoroughly. If you plan to publish your research, this comprehensive approach to detailing your sources will provide readers and other researchers with a substantial directory of resources to evaluate for their own work.

Whether you’re publishing or submitting your annotated bibliography, make sure your spelling and wording is correct! If you need to brush up on any parts of speech topics, check out our interjection , determiner , and adverb pages!

Step 1: Analyze your sources 

Each annotation should be a summarization or analysis of your source. If you have been tasked with writing annotations as part of a research paper or project, begin to create both the citation and notes on the source while you identify and analyze your sources.

Not only will this approach help you to hone your research skills and identify sources that are relevant and useful for your topic, but you will also save time. When done in this manner, both your citations and annotations will be nearly complete before you begin to write the body of your paper.

Analyzing your potential sources requires a two-pronged approach that first evaluates the author, publication, and date, and then examines the content.

When conducting your initial assessment of the source, consider some of the following questions to guide your appraisal:

• What qualifies the author to write on this subject?
• Is the author affiliated with a reputable institution in this field?
• Is the author credentialed or otherwise considered an expert in this field?
• Is this source current?
• Is this the most recent edition?
• Is the publisher reputable?
• Is the journal reputable?

Once your primary evaluation is complete, you will move on the assessing the content itself. Consider some of these elements as you review each source:

• Who is the intended audience?
• Is the author presenting her opinion or interpretation as the truth, or stating facts?
• What supporting evidence does the author provide?
• Did the author perform the research, or curate and present the research of others?
• If the author used the research of others, are the sources the author cites credible?
• Are there errors or omissions of fact?
• Is the author writing objectively and without bias?

Also, consider the value each source provides to you:

• Is the information helpful for your particular assignment?
• Does it help answer your research question(s)?
• Is this source different from your other sources, or does it repeat information you already have?
• Is the source providing you with a different perspective on your topic, or changing your beliefs or thinking about your subject?

To make it easier for you to create your reference page, write your notes in the format you will be using when you construct this part of the assignment (for instance, as short phrases or complete sentences). Once you have identified all of the sources you wish to include, you will merely need to insert what you have already written on the page and write your citation, which is explained in the next section.

Click here for additional information and a supplementary annotated bibliography sample. For an MLA bibliography example (with annotations),  check out our visual example of an MLA annotated bibliography .

An annotated bibliography entry may be written either as short phrases or complete sentences. Your instructor will advise you of which approach you are required to take.

Annotations should include either:

• The main points from the source, as well as the topics covered, the approach used, and any findings.
• Or your critical evaluation.
• A standard annotation is approximately one paragraph.
• Take care not to include any unnecessary details, as the goal is to summarize each source as succinctly as possible and, in some cases, evaluate them.
• Your field of study or instructor will determine what format your annotated bibliography will use. In this guide, you’ll find examples of an MLA and an APA annotated bibliography.

Here is an annotated bibliography example MLA annotation for the book The Elements of Eloquence: Secrets of the Perfect Turn of Phrase by UK author and blogger Mark Forsyth:

The author, Mark Forsyth, examines the rhetorical devices used in the English language, analyzing the patterns and formats that create memorable quotes. He traces the history of rhetoric to the Ancient Greeks, and provides an abridged timeline, following their use and evolution through to modern day. The author also explores the broader subject of persuasion and maps out the role that the figures of rhetoric play in it. In all, he examines over thirty devices, dissecting notable passages and phrases from pop music, the plays of William Shakespeare, the Bible, and more to explore the figures of rhetoric at work within each of them. Thorough definitions accompany this examination of structure to demonstrate how these formulas have been used to generate famously memorable expressions as well as how to reproduce their effects.

Notice how the annotated bibliography MLA entry above is descriptive enough so the reader has an idea of what the source is about with just a single paragraph. For more information on annotations, check out this informative site . If you’re looking to strengthen your writing in general, reading these grammar guides could be a good start.

For guidance on creating entries in MLA format , APA format , and more styles , check out the EasyBib library of resources or try the EasyBib annotation tool—we talk about it below!

Step 3a: MLA annotated bibliography format

The MLA Style Center and the current edition of the MLA Handbook provide the following guidance for formatting an MLA annotated bibliography:

• Title your reference page as “Annotated Bibliography” or “Annotated List of Works Cited.”
• Place each annotation after its reference.
• Annotations should typically not exceed a single paragraph.
• Annotations should be indented one inch from the start of your citation.
• Double-space all text on the page.
• 1-inch margins around the page.

Sources in an annotated bibliography can be organized alphabetically by the first word in each reference (as with a normal Works Cited page), by publication date, or by subject.

For a visual example of an annotated bibliography, as well as specific annotation examples, visit the MLA annotated bibliography guide .

If you are required to share your references in a manner other than in MLA bibliography format, the EasyBib style guides can help you with many common styles. While you’re at it, check out their conjunction , preposition , and pronoun pages to help keep your paper in mint condition!

Step 3b: APA annotated bibliography format

The American Psychological Association states that your instructor should set the guidelines for your annotated bibliography, but asks that the bibliography be formatted according to their standard reference page rules (see Section 9.51 of the Publication Manual ). If your teacher has requested an APA formatted annotated bibliography, first ask them for guidelines. Otherwise, here are some quick rules for you to follow:

• Double space all text on the page.  
• Title your page “Annotated Bibliogra phy”. Bold and center the title.  
• Organize references alphabetically by the first word of each reference.  
• Only the first line of a ref erence is flush with the left margin. Any other lines after the first line should be indented ½ inch from the left.  
• Add annotations on the next line after their paired reference.   
• Fully indent annotations by a ½ inch from the left.  
• Keep annotations short. No more than one paragraph.  

For examples of a  properly formatted APA annotation, visit this guide on APA annotated bibliographies .  

In comparison to the sample annotated bibliography MLA, the APA sample formats its page elements and references differently.

Students and researchers who type their research notes can save time by using an annotated bibliography template in MLA format while reviewing and analyzing sources. By adding the relevant information into a pre-formatted template, you’ll create a resource that helps you when you begin writing your paper in addition to saving time by completing your references and summaries alongside your research.

Students who prefer to take notes by hand can employ a modified version of this approach, with an additional step required to transfer your handwritten and formatted references from your notebook to populate your reference page.

Bibliography Template for MLA

To create an annotated bibliography MLA template, copy the following details into the program in which you will take notes or hand write it on the top margin of a page in your notebook. For each source, use this template to guide you as you identify the necessary details and insert them into your notes:

• Author (Last name, First name).
• Title of source.
• Title of the container ,
• Other contributors (names and roles),
• Publication Date,
• Location of the source (such as URL or page range).
• Summary or Analysis.

The MLA 9 model for MLA works cited entries offers a single format for all source type, and a great deal of flexibility to include the information most relevant to your topic and omit that which isn’t.

Hopefully our visual annotated bibliography example in MLA above has helped. If you still have lingering questions, visit the MLA Style Center online ( linked here ). Also, here’s a guide if you’re looking for more on the related topic of MLA in-text & parenthetical citations .

Bibliography Template for APA

Students and researchers who are still asking themselves how to piece together an annotated bibliography, or still questioning what is an annotated bibliography, could probably benefit from a template, similar to the one above. This one, however, is for those of you who are tasked with creating an annotated bibliography in the style created by the American Psychological Association.

The tricky thing about this specific style though, is that every reference is styled differently. Books, websites, journal articles, newspaper articles, and many others each have their own reference structure.

For most sources though, you should look for the following, basic information:

• Type of source
• Author (last name, first name)
• Title of source/article/web page, etc.
• Title of where source was found (e.g., database name, website name, etc.)
• Other contributors (names and roles)
• Location of the source (such as URL, DOI, or page range)
• Summary or Analysis

We understand it can get tricky, and it’s very different from the Modern Language Association’s structure for references. Take a moment to either use the other handy guides on EasyBib.com or use our automatic generator to form your references in just a few clicks. Our tools help take the pain away from having to rack your brain to form references properly. Capitals, lowercase letters, italics, quotation marks, punctuation in the appropriate places, it can all be quite overwhelming. Do yourself a favor, and use the EasyBib automatic citation generator.

Even though there are a lot of different variations, here’s a commonly used structure for sources:

Author’s Last Name, First initial, Middle initial. (Year the source was published). Title of the source . Retrieved from (insert the website address here)

Underneath the reference, include your summary or analysis paragraph.

Hopefully, this page helped answer all of your “What is an annotated bibliography?” questions. If you’re seeking out an annotated bibliography generator, follow the steps above the annotated bibliography examples.

Looking for additional help with other related topics? Don’t forget about the various beneficial guides on EasyBib.com! Our APA in-text citation guide and our APA parenthetical citation guide are two of our most popular pages. Learn the ins and outs of referencing your work in the body of your paper with our thorough, complete, and reader-friendly guides.

If you are creating a bibliography in MLA format, the EasyBib MLA bibliography generator can help save you time formatting your citations and annotations correctly. You can create entries for websites, books, videos, databases, dictionary articles, and many other types of sources.

In addition to forming the citations, you can also enter your annotation text to produce the complete entry for each source. The process for this is simple. You can follow along below to practice creating one:

• First, select your source type from among the 50+ available options. For this example, we will use the acting career of Keanu Reeves as our research topic and use the movie Point Break from 1991 as our first source. To cite this film, you would select the option for “Film/Online Video.” As you follow along, pick the option that is suitable for your source if you are using a different example.
• Enter the title of your source or, if you are citing a website, you may enter the URL. (Now would be a great time to peek at how to cite websites in MLA ). After you enter the title or URL for your reference, the EasyBib citation tool will scan for titles that match it and provide you with a list of results. Select “Cite this” next to the listing that matches your source.
• You will see a citation form. This gives you the option to add additional relevant or necessary information. For our sample topic, we will specifically cite Keanu Reeves as the performer and Kathryn Bigelow as the director.
• After entering any additional details, you have the option to expand your entry and include an annotation. To do so, select “Add annotation” at the bottom of the page, and a text box will open up.

Then, type your summary or analysis into the text box. If you took notes during the research stage using the format of your paper, this might be as simple as copying and pasting your already written summary or critique. Once you have entered all of the necessary information, select “Create citation” to generate the complete entry. You can then copy and paste this into your MLA bibliography.

Here’s what it’ll look like:

Point Break . Directed by Kathryn Bigelow, performance by Keanu Reeves, 20th Century Fox, 1991.

Reeves’ role as rookie FBI Agent Johnny Utah in Point Break marks the turning point in his Hollywood film career. While he’d risen to fame due to the success of the Bill and Ted franchise, his status today as an action star began when Point Break provided him with the material to establish himself as capable of portraying more than the lovable but unserious characters of his previous starring roles. In a parallel arc, director Kathryn Bigelow’s career also sees a shift beginning with Point Break , establishing her within the traditional action genre as a serious director capable of creating high-action and visually memorable films. While Point Break leaves plenty to be desired in terms of dialogue, it afforded Bigelow and Reeves the opportunities to showcase themselves and their talent in new ways that still echo in their work today.

• Works Cited

Harner, James L.  On Compiling an Annotated Bibliography . 2nd ed., Modern Language Association of America, 2000.

MLA Handbook . 9th ed., Modern Language Association of America, 2021.

Publication Manual of the American Psychological Association . 7th ed., American Psychological Association, 2020.

“What Guidance Should I Give My Students for Preparing an Annotated Bibliography?” The MLA Style Center , The Modern Language Association, 4 Nov. 2016, style.mla.org/annotated-bibliographies/.

Visit our EasyBib Twitter feed to discover more citing tips, fun grammar facts, and the latest product updates.

Published October 18, 2015. Updated July 25, 2021.

Written and edited by Michele Kirschenbaum and Elise Barbeau. Michele Kirschenbaum is a school library media specialist and is the in-house librarian at EasyBib.com. Elise Barbeau is the Citation Specialist at Chegg. She has worked in digital marketing, libraries, and publishing.

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An annotated bibliography is a list containing complete information of sources, such as journals, books, and reports, cited in the text. In addition, it provides a brief description of each source in about 100–150 words. The annotation can explain the topics covered in the source or evaluate the source. The main objective of giving the annotation is to provide the reader the importance, accuracy, and value of the source.

An example of an annotated bibliography in APA style is given below.

Lim, L. (2014). Ideology, rationality and reproduction in education: A critical discourse analysis. Discourse: Studies in the Cultural Politics of Education, 35 (1), 61–76. https://doi:10.1080/01596306.2012.739467

Lim (2014) focuses on issues of power and ideology dominant in curricular discourses of rationality to study a discourse analysis of the goals of one of the most important curricula in the teaching of thinking. He proves that political and class commitments are reproduced in the forms of thinking that are valued in societies. Through his research, Lim asserts that such curricula engage in making our understanding of what thinking and rationality are. It must facilitate the social reproduction of a specific proportion of the middle class.

If you want to evaluate or provide a description of a source you are citing, you can create an annotated bibliography. Write your annotation in 100–150 words and add it below the source for which you are providing your annotation. Remember, your annotation should provide the reader the importance, accuracy, and value of the source. Below are the guidelines and rules to be followed while writing an annotated bibliography for APA style:

Order your reference entries in alphabetical order, similar to how you would order entries in the reference list.

If you want to add an annotation to an entry, add it as a fresh paragraph below the reference entry. The annotation is indented 0.5 inches from the left margin. However, the first line of the annotation is not indented.

To format the annotated bibliography, follow the recommendations given below:

Set the left, right, top, and bottom margins to 1 inch.

Give double-line spacing.

Title the page “Annotated Bibliography.” Set it in bold.

The title should be aligned to the center of the page.

As you format reference entries, left-align all references in the annotated bibliography section. If any entry runs over more than a line, indent the subsequent lines 0.5 inch from the left margin.

Arrange all reference entries alphabetically according to the surname of the authors.

Provide your annotations below the reference entry for which you want to give your annotation. Indent annotations 0.5 inches from the left margin.

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How to Reference Single and Multiple Authors in APA Format

Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

Emily is a board-certified science editor who has worked with top digital publishing brands like Voices for Biodiversity, Study.com, GoodTherapy, Vox, and Verywell.

• Multiple Authors

APA format establishes a number of clear rules for how to list reference works using author information. How you reference different sources varies depending on the number of authors to whom the source is attributed. For example, the way that you reference a single author will differ somewhat from how you reference a source with multiple authors.

Before you create a reference section for a psychology paper, it is important to know how to properly list books, articles, and other sources as well as in-text citations in APA format. The following guidelines can help you prepare a reference section for your APA format paper.

These guidelines are sometimes referred to as APA 7 since the guidebook for APA formatting is the Publication Manual of the American Psychological Association, 7th edition .

APA Format for No Author

Articles and other works that do not provide an author attribution should begin with the title of the work . If the title is a book, list the title in italics. The volume number, issue number (if available), and page numbers should follow journal titles, while book titles should be followed by the publisher's name.

For example:

• A student guide to APA format. (1997). Psychology Weekly, 8, 13-27.
• The ultimate APA format guidebook. (2006). Student Press.

For in-text citations or those referenced within the body of the text, you will also use the title, either in italics (for books) or in quotation marks (for articles). For example: Using proper APA format ("A student guide to APA format," 1997).

APA Format for One Author

Works by a single author should list the author's last name and initials. The date of publication should be enclosed in parentheses and followed by the title of the article or book. Books and journal titles should be listed in italics. The volume number, issue number, and page numbers of the article should follow journal titles, while book titles should be followed by the name of the publisher.

• McCrae, R. R. (1993). Moderated analyses of longitudinal personality stability. Journal of Personality and Social Psychology, 65 (3), 577-585.
• Bandura, A. (1977). Social learning theory. Prentice-Hall.

One-author in-text citations should include the surname without any suffixes (Jr.) and the date of publication in parenthesis. For example: As Bandura (1997) mentions... or (Bandura, 1977). If you are citing different authors with the same last name, include the first initial: (A. Alper, 2004) and (B. Alper, 2005).

APA Format for Multiple Authors

The APA format for multiple authors varies depending on how many authors a publication has.

Two Authors

Works by two authors should list the last names and first initials separated by an ampersand (&). These names should be followed by the date of publication enclosed in parentheses.

If the work is a journal article, the title of the article should immediately follow the publication date. Next, the title of the book or journal should be listed in italics. If the reference is a journal article, provide the volume number, issue number, and page numbers. For books, list the name of the publisher.

• Kanfer, F. H., & Busemeyer, J. R. (1982). The use of problem-solving and decision-making in behavior therapy . Clinical Psychology Review, 2 (2) , 239-266.
• Buss, A. H., & Pomin, R. (1975). A temperament theory of personality development . Erlbaum.

In-text citations of works by two authors should include the surnames of both authors separated by the word "and" or by an ampersand if using parenthesis. For example: Studies by Buss and Pomin (1975) support... or (Buss & Pomin, 1975).

Three to 20 Authors

According to APA 7 guidelines, works by three to 20 authors are cited by listing the last names and first initials of each author separated by an ampersand. Author names should be followed by the date of publication enclosed in parentheses.

If the work is a journal article, include the title of the article immediately following the publication date. The title of the book or journal should then be listed in italics. If the reference is a journal article, provide the volume number, issue number, and page numbers. For books, list the name of the publisher.

• Abma, J. C., Chandra, A., Mosher, W. D., Peterson, L. S., & Piccinino, L. J. (1997). Fertility, family planning, and women’s health: New data from the 1995 National Survey of Family Growth. Vital and Health Statistics, 23 (9), 1-67.
• Alper, S., Schloss, P. J., Etscheidt, S. K., & Macfarlane, C. A. (1995). Inclusion: Are we abandoning or helping students? Corwin Press.

In-text citations for works by three or more authors should list the first author's name, followed by "et al." in every citation. For example: Alper, et al. (1995) supports...or (Alper, et al, 1995).

However, if you are citing multiple works by similar groups of authors, you may need to include multiple names to avoid confusion. For example: Alper, Schloss, Etscheidt, et al. (1995) discovered...or (Alper, Schloss, Etscheidt, et al., 1995).

Whether citing a source with three, five, seven, or 20 authors, the APA format is the same.

More Than 20 Authors

When a work is credited to more than 20 authors, the reference is listed by providing the names of the first 19 authors followed by . . . and then the final author. The remainder of the reference follows the same format as that for 20 or fewer authors.

Authors' last names and initials are followed by the date of publication enclosed in parentheses. The name of the article is listed immediately after the publication date. The title of the journal or the book title should be provided in italics. The volume number, issue number, and page number should follow journal titles, while book titles should be followed by the publisher's name.

• Pegion, K., Kirtman, B. P., Becker, E., Collins, D. C., LaJoie, E., Burgman, R., Bell, R., DelSole, R., Min, D., Zhu, Y., Li, W., Sinsky, E., Guan, H., Gottschalck, J., Metzger, E. J., Barton, N. P., Achuthavarier, D., Marshak, J., Koster, R., . . . Kim, H. (2019). The subseasonal experiment (SubX): A multimodel subseasonal prediction experiment.  Bulletin of the American Meteorological Society ,  100 (10), 2043-2061.
• Arlo, A., Black, B., Clark, C., Davidson, D., Emerson, E., Fischer, F., Grahmann, G., Habib, H., Ianelli, I., Juarez, J., Kobayashi, K., Lee, L., Martin, M., Naim, N., Odelsson, O., Pierce, P., Qiang, Q., Reed, R., Scofield, S., . . . Thatcher, T. (2001). Instructive falsehoods: Examples and sources . Thommel-Reed.

In-text citations should list the first author's name, followed by "et al." in every citation. You can read more about a few different aspects of referencing sources in APA format if you have book references , article references , and electronic sources .

Frequently Asked Questions

How do i cite a website with no author in apa format.

If a website has no author, cite the title (or the first few words of the reference list entry) followed by the year. APA website citations will also include the website name and URL.

How do I cite a publication with no author in APA format?

If there's no author, the title of the work is listed first followed by the volume number, issue number (if available), and page numbers. If it's a book, the title should be in italics and followed by the publisher's name.

How do I cite an author with two last names?

Works by an author with two last names should list both names. If the name is hyphenated, include both names and the hyphen.

American Psychological Association.  Publication Manual of the American Psychological Association  (7th ed.). Washington DC: The American Psychological Association; 2019.

Purdue Online Writing Lab. In-text citations: Author/authors .

Purdue Online Writing Lab. Reference list: Author/authors .

By Kendra Cherry, MSEd Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

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