Reference lists in the APA are arranged alphabetically by author. When citing sources in the reference list, reverse all author names, providing the last name first, followed by a comma and initials. Use a comma to separate author names. Give the authors' names and initials. Use an ampersand, amp, before the final author's name. Separate the names of multiple authors with commas. Before the last author's name, you must also insert an ampersand, amp. A reference entry can contain up to multiple authors. If there are more, the reference list is double-spaced between each reference AND within the reference. A list of references is arranged alphabetically by author last name. Each reference appears on a new line. Each item in the reference list must have a negative indent. Zarate, K. Maggin, DM amp Passmore, A. 2019. 7th Edition APA Style Reference Examples - This linked document provides more examples of common reference types in the 3rd Edition APA Style. Examples include references from journal articles, books, web pages, reports written by organizations, etc. American Psychological Association. 2020. APA Style Reference Examples: Cite both names each time. more authors: only indicate the name of the first author and et al. even for the first instance. If shortening authors leads to multiple references with the same author-date form, use as many later names as necessary to make it unique. Hinsch amp Sheldon, 2013 This citation guide is based on the Publication Manual of the American Psychological Association, 7th ed. 2020. Content is accurate to the best of our knowledge. The content of this guide was copied with permission from, Of th ed. The APA Handbook provides many other reference examples for many types of reference materials. place of publication, DOI, URL, etc. However, the elements change to reflect what the resource is. So, for example, if you use a source from the open web, there will be a URL. If you're using a printed book, well, having a standard format for citing sources allows readers to glance at a quote or APA reference and easily locate the title, author, year of publication and other critical information needed to understand a source. The evolution of this style. The guide below is based on the th edition of the APA, which has been published.