Books and book chapters are also frequently cited in cancer research. When citing a book, include the author(s), title, edition (if applicable), publisher, year of publication, and page numbers. For book chapters, additionally include the chapter title and the editors of the book. For example, in APA style: Doe, J. (2023). Cancer Therapy. In Smith, A. (Ed.), Advances in Oncology (3rd ed., pp. 45-67). New York, NY: Academic Press.