Gather all your research materials. Have all your books or Internet resources available to reference in the endnotes.
Write your paper with parenthetical citations. As per the standards of the APA, all citations require a parenthetical citation in the text. For example, "this research states this happens (Smith 98)" is the typical citation for APA style.
Choose where you wish to place the endnote. APA guidelines allow the writer to have an endnote either at the bottom of the page or, if there are chapters, at the end of the chapter.
Utilize the menu bar on your word processing program. Press the "Insert" menu option and select a "Footnote/Endnote" option. In the menu screen, select where you want the endnote: bottom of the page or at the end of the chapter.
Match reference numbers. A number will be placed next to the sentence where you had the reference. The number corresponds to an endnote at the bottom or at the end of the chapter.
Write out the reference. The reference should list, in order, the author, the title of the book or article, the publisher, the date of publishing and the specific pages you used in the reference.
Refer to an already mentioned reference as "See..." According to the APA, you do not need to constantly name the same reference multiple times. Instead, the APA recommends writing "See Author (publishing date) for further information."
Clarify your reference. The APA recommends endnotes for further clarification. For example, at the endnote for a sentence you can write out the reference and then state "author's reasoning for this claim is as follows." The APA recommends most endnotes this way so that readers can see how you interpreted an author or article.