APA-referens (7:e uppl.)

American College of Surgeons. (1991). Update on biliary tract disease. American College of Surgeons.

Chicago-referens (17:e uppl.)

American College of Surgeons. Update on Biliary Tract Disease. New York: American College of Surgeons, 1991.

MLA-referens (9:e uppl.)

American College of Surgeons. Update on Biliary Tract Disease. American College of Surgeons, 1991.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.