APA način citiranja

Urbach, D. R., & Stukel, T. A. (2005). Rate of elective cholecystectomy and the incidence of severe gallstone disease. Canadian Medical Association.

Čikaški stil citiranja

Urbach, David R., i Thérèse A. Stukel. Rate of Elective Cholecystectomy and the Incidence of Severe Gallstone Disease. Canadian Medical Association, 2005.

MLA način citiranja

Urbach, David R., i Thérèse A. Stukel. Rate of Elective Cholecystectomy and the Incidence of Severe Gallstone Disease. Canadian Medical Association, 2005.