APA 7th Edition Style Guide

• A reference list contains entries for works that have been cited in the paper
• A bibliography may contain background materials and suggestions for further reading (in addition to works cited in the paper)
• All references cited in the text must be included in the reference list and vice versa
• Note that the APA style requires a reference list but not a bibliography

Arrange entries in reference list according to the following rules (in order of precedence): 

• single-author entries before multiple-author entries
• alphabetical sequence by principal author surname
• alphabetical sequence by surname of second (and subsequent) author(s)
• chronological sequence
• alphabetical sequence by title of the work

• If a work has no author, place the title of the work in the author position and alphabetise the entry by the first significant word of the title.
• If a work is signed “Anonymous”, alphabetise the entry as if Anonymous were a real name.
• Alphabetise the prefixes M’, Mc and Mac as they appear.  E.g. MacArthur precedes McAllister; MacNeil precedes M’Carthy.
• Up to 20 authors: List all authors’ names (surnames followed by initials) and alphabetize the entry by the first surname, e.g.

Author, A. A., Author, B. B., Author, C. C., Author, D. D., Author, E. E., Author, F. F., & Author, G. G.,...

• More than 20 authors: List first 19 authors’ names, follow with three ellipses (. . .) and add the last author’s name, e.g.

Author, A. A., Author, B. B., Author, C. C., Author, D. D., Author, E. E., Author, F. F., . . . Author, H. H.

• Do not put a full stop at the end of the following: URL, doi, ERIC document number, abbreviations of U.S. state names.
• When the document is assigned a DOI (e.g. doi:10.1596/978-0-8213-7375-0), give it a prefix (https://doi.org/) to convert it into a working hyperlink (e.g. https://doi.org/10.1596/978-0-8213-7375-0).
• When the document is not assigned a DOI, give the exact URL of the document if:
  • it leads to the specific document
  • the specific document cannot be easily located from the home page
  • the document is not yet indexed on the website

•  Give the URL of the homepage (e.g. of journal, book, publisher or online archive) if:
  • the URL of the document is not permanent
  • the URL of the document is very long
  • you do not have a URL that leads to the document itself
  • the document is not easily accessible through its primary publishing channels
  • the document is accessible only by subscription
• It is not necessary to include the words "Retrieved from" or "Accessed from" before a DOI or URL as the hyperlink leads readers directly to the content.