Cita APA (7a ed.)

Aizen Tub, B., Beltrán Guañarita, J., & Gómez Fossati, C. (1991). Gallstones in the young: Epidemiological review.

Cita Chicago Style (17a ed.)

Aizen Tub, Bernardo, Jorge Beltrán Guañarita, y Carlos Gómez Fossati. Gallstones in the Young: Epidemiological Review. 1991.

Cita MLA (9a ed.)

Aizen Tub, Bernardo, et al. Gallstones in the Young: Epidemiological Review. 1991.