APA citiranje

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

Citação norma Chicago

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

MLA citiranje

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