Referencing a chapter in a book using APA style is something I’ve had to do countless times for my research. The basic format includes the author(s) of the chapter, the publication year, the chapter title, the editor(s) of the book, the book title, the page range of the chapter, and the publisher. For example: Author, A. (Year). Title of chapter. In E. Editor (Ed.), 'Title of book' (pp. xx-xx). Publisher.
It’s crucial to italicize the book title but not the chapter title. If the book has multiple editions, include that information after the title, like 'Title of book' (2nd ed.). Also, if the chapter has a DOI, add it at the end. I always double-check the APA manual or Purdue OWL to ensure I haven’t missed any details, like proper capitalization or punctuation.