Cita APA (7a ed.)

Gastambide, C., Cohen, H., Olivera, E., Ribero, G., & Rodríguez, O. (1991). Intraoperative liver ultrasound.

Cita Chicago Style (17a ed.)

Gastambide, Carmelo, Henry Cohen, Eduardo Olivera, G. Ribero, y O. Rodríguez. Intraoperative Liver Ultrasound. 1991.

Cita MLA (9a ed.)

Gastambide, Carmelo, et al. Intraoperative Liver Ultrasound. 1991.