Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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