Cita APA (7a ed.)

Estefan, A., Abó, J. C., Gateño, N., Chifflet, J., & Clark, O. (1977). Aortic Aneurysm and Horseshoe, Kidney.

Cita Chicago Style (17a ed.)

Estefan, Alberto, Juan C. Abó, Nisso Gateño, Juan Chifflet, y Omar Clark. Aortic Aneurysm and Horseshoe, Kidney. 1977.

Cita MLA (9a ed.)

Estefan, Alberto, et al. Aortic Aneurysm and Horseshoe, Kidney. 1977.