Cita APA

Hayes, P., Hislop, W. S., Ross, P. E., & Potts, R. C. (1981). Hazards of biliary tract surgery.

Chicago Style Citation

Hayes, P., W S. Hislop, P E. Ross, i R C. Potts. Hazards of Biliary Tract Surgery. 1981.

Cita MLA

Hayes, P., W S. Hislop, P E. Ross, i R C. Potts. Hazards of Biliary Tract Surgery. 1981.