Cita APA (7a ed.)

Piñeyro, A., Yannicelli, B., & Bowley, R. (1981). Spontaneous Disappearence of Common Bile Duct Lithiasis: Confirmed by Radiology.

Cita Chicago Style (17a ed.)

Piñeyro, Alberto, Bernardo Yannicelli, y Roberto Bowley. Spontaneous Disappearence of Common Bile Duct Lithiasis: Confirmed by Radiology. 1981.

Cita MLA (9a ed.)

Piñeyro, Alberto, et al. Spontaneous Disappearence of Common Bile Duct Lithiasis: Confirmed by Radiology. 1981.