How to Write a Bibliography With Two Authors

Many books, articles or other publications are written by two authors, also known as co-authors. When more than one author is credited for the information source, both authors are listed in the bibliography. A bibliography is a list of resources---print, online, video, etc.---used or referred to in a written work. It represents the research done in preparation for writing, and additional resources that may be of interest to the reader.

The styles used for documenting in social sciences and humanities are APA (American Psychological Association) and MLA (Modern Language Association), respectively.

Instructions

  1. APA Style

    • 1

      Write the first author's last name, a comma, the first initial (or the first and second initial), a period, then a comma.

      Example: Ferguson, E.,

    • 2
      APA style uses an ampersand instead of the word "and."

      Add an ampersand (&), the second author's last name, a comma, then the first initial (or the first and second initial), a period, then a comma.

      Example of steps 1 and 2 together: Ferguson, E., & Barbaresi, S. M.,

    • 3

      Add the year of publication enclosed in parentheses, followed by a period. Example: (1982).

      Example of steps 1, 2 and 3 together: Ferguson, E., & Barbaresi, S. M., (1982).

    • 4

      Add the title, capitalizing only the first letter of the first word and any proper nouns, followed by a period. The title is italicized.

      Example of all four steps together: Ferguson, E., & Barbaresi, S. M., (1982). How to raise and train a chihuahua.

    • 5

      Add the city of publication followed by a colon. Example: Neptune City:

      Example of all five steps together: Ferguson, E., & Barbaresi, S. M., (1982). How to raise and train a chihuahua. Neptune City:

    • 6

      Add the name of the publisher followed by a period. Example: TFH Publications, Inc. Ltd.

      Example of all six steps together: Ferguson, E., & Barbaresi, S. M., (1982). How to raise and train a chihuahua. Neptune City: TFH Publications, Inc. Ltd.

    • 7
      Indent the second line one-half inch.

      Indent the second line of the citation one-half inch, or five spaces. This is often called a hanging indent.

    MLA Style

    • 8

      Write the first author's last name, a comma, the first name or initial (or the first and second initial), a period, then a comma.

      Example: Ferguson, E.,

    • 9

      Add the word "and," then the second author's name in standard format (first name then last), followed by a period. Example: and Sara M. Barbaresi.

      Example of steps 1 and 2 together: Ferguson, E., and Sara M. Barbaresi.

    • 10

      Add the title, followed by a period. Use the standard title capitalization guidelines (capitalizing all major words). The title is italicized. Example: How to Raise and Train a Chihuahua.

      Example of steps 1, 2 and 3 together: Ferguson, E., and Sara M. Barbaresi. How to Raise and Train a Chihuahua.

    • 11

      Add the city of publication followed by a colon. Example: Neptune City:

      Example of all four steps together: Ferguson, E., and Sara M. Barbaresi. How to Raise and Train a Chihuahua. Neptune City:

    • 12

      Add the name of the publisher followed by a comma. Use the short form of the publisher's name, except for university presses. Example: TFH,

      Example of all five steps together: Ferguson, E., and Sara M. Barbaresi. How to Raise and Train a Chihuahua. Neptune City: TFH,

    • 13

      Add the most recent year of publication followed by a period. Example: 1982.

      Example of all six steps together: Ferguson, E., and Sara M. Barbaresi. How to Raise and Train a Chihuahua. Neptune City: TFH, 1982.

    • 14

      Add the medium (e.g. print, web, DVD, CD, performance or film), followed by a period.
      Example: Print.

      Example of all seven steps together: Ferguson, E., and Sara M. Barbaresi. How to Raise and Train a Chihuahua. Neptune City: TFH, 1982. Print.

    • 15
      Indent the second line one-half inch.

      Indent the second line of the citation one-half inch, or five spaces. This is often called a hanging indent.

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