APA (7th ed.) Citation

Christopher. (1968). Textbook of surgery (9th ed.). W. B. Saunders.

Chicago Style (17th ed.) Citation

Christopher. Textbook of Surgery. 9th ed. Philadelphia: W. B. Saunders, 1968.

MLA (9th ed.) Citation

Christopher. Textbook of Surgery. 9th ed. W. B. Saunders, 1968.