Citação norma APA

Walker, E. M., & Rose, D. H. (1983). Removal of common bile duct stones after emergency drainage of the gall bladder. Royal College of Surgeons of England.

Citação norma Chicago

Walker, E. M., and D. H. Rose. Removal of Common Bile Duct Stones After Emergency Drainage of the Gall Bladder. Royal College of Surgeons of England, 1983.

Citação norma MLA

Walker, E. M., and D. H. Rose. Removal of Common Bile Duct Stones After Emergency Drainage of the Gall Bladder. Royal College of Surgeons of England, 1983.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.