Christopher, D. (1977). Textbook of surgery, the biological basis of modern surgical practice (11.ed.). Saunders Company.
Chicago-referens (17:e uppl.)Christopher, Davis. Textbook of Surgery, the Biological Basis of Modern Surgical Practice. 11.ed. Washington, D.C: Saunders Company, 1977.
MLA-referens (9:e uppl.)Christopher, Davis. Textbook of Surgery, the Biological Basis of Modern Surgical Practice. 11.ed. Saunders Company, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.