Cita APA (7a ed.)

Davidenko, N., Casanova de Davidenko, M., Baldizán, J., Davidenko, A., Ripoll, R., & Grazziani, Y. (1979). Bile duct abnormalities in secondary liver tumors.

Cita Chicago Style (17a ed.)

Davidenko, Nicolás, Marys Casanova de Davidenko, Jorge Baldizán, Antonio Davidenko, Roberto Ripoll, y Yolanda Grazziani. Bile Duct Abnormalities in Secondary Liver Tumors. 1979.

Cita MLA (9a ed.)

Davidenko, Nicolás, et al. Bile Duct Abnormalities in Secondary Liver Tumors. 1979.