How to Cite a Chapter in an Edited Book in APA Format. Edited books are collations of chapters written by different authors. To reference a single chapter, a different format is needed. The basic structure is as follows: Edited book chapter example: In the following example, B.N. Troy is the author of the chapter and S.T. Williams is the editor. Troy, B.N. (2015). APA citation rules. In S.T.