Cita APA (7a ed.)

Beguiristain, A., Pignata, D., Pomi, J., & Estefan, A. (1979). Cholangiographic Study of the Location of Papilla of Vater.

Cita Chicago Style (17a ed.)

Beguiristain, Alberto, Daniel Pignata, Jorge Pomi, y Alberto Estefan. Cholangiographic Study of the Location of Papilla of Vater. 1979.

Cita MLA (9a ed.)

Beguiristain, Alberto, et al. Cholangiographic Study of the Location of Papilla of Vater. 1979.