Surgery of the anus, rectum and colon. Saunders.
Chicago Style (17th ed.) CitationSurgery of the Anus, Rectum and Colon. London [u.a.]: Saunders.
MLA (9th ed.) CitationSurgery of the Anus, Rectum and Colon. Saunders.
Warning: These citations may not always be 100% accurate.