Cita APA (7a ed.)

Praderi, R. C., & Gil, J. (1998). The five biliary obstruction syndromes.

Cita Chicago Style (17a ed.)

Praderi, Raúl C., y Juan Gil. The Five Biliary Obstruction Syndromes. 1998.

Cita MLA (9a ed.)

Praderi, Raúl C., y Juan Gil. The Five Biliary Obstruction Syndromes. 1998.