APA (7th ed.) Citation

Christopher, F., Davis, L., & Sabiston, D. C. (1981). Textbook of surgery: The biological basis of modern surgical practice (12th ed.). Saunders.

Chicago Style (17th ed.) Citation

Christopher, Frederick, Loyal Davis, and David C. Sabiston. Textbook of Surgery: The Biological Basis of Modern Surgical Practice. 12th ed. Philadelphia: Saunders, 1981.

MLA (8th ed.) Citation

Christopher, Frederick, et al. Textbook of Surgery: The Biological Basis of Modern Surgical Practice. 12th ed. Saunders, 1981.