Citazione Stile APA (7a Edizione)

Christopher, D. (1977). Textbook of surgery, the biological basis of modern surgical practice (11.ed.). Saunders Company.

Citazione stile Chigago Style (17a edizione)

Christopher, Davis. Textbook of Surgery, the Biological Basis of Modern Surgical Practice. 11.ed. Washington, D.C: Saunders Company, 1977.

Citatione MLA (9a ed.)

Christopher, Davis. Textbook of Surgery, the Biological Basis of Modern Surgical Practice. 11.ed. Saunders Company, 1977.