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APA Style Guide: 7th Edition

Book with Author(s)


Author, A. A., Author, B. B., & Author, C. C. (Year of publication). Title of work in italics and sentence case: Capitalize first letter of subtitle (# edition, if available). Publisher.



Eco, U., Farina, G., & Mongiat, C. (2015). How to write a thesis (2nd ed.). The MIT Press.


  • Author, A. A. = Author's surname followed by first and middle initials, when available.
  • If no date is visible, use the abbreviations n.d.
  • Provide surnames and initials for up to and including 20 authors.
  • When there are two to 20 authors, use an ampersand (&) before the final author's name.
  • When there are 21 or more authors, include the first 19 authors' names, insert an ellipsis (...), and then add the final author's name.

Examples of formatting an in-text citation for this item are outlined below:

Reference Information

Eco, U., Farina, G., & Mongiat Farina, C. (2015). How to write a thesis. The MIT Press.

In-text Citation Guidelines



Parenthetical citation example



Consider this a paraphrased sentence (Eco et al., 2015).   


Narrative citation example


According to Eco et al. (2015), "consider this a direct quote" (p. 5).

Remember, in-text citation formatting may change depending on a number of factors.

See Number of Authors, Publication Date, and Page/Paragraph Number or Heading for more information.