Cita APA (7a ed.)

Ruso, L., González, F., Bogliaccini, G., & Morelli, R. (1991). Spontaneous esophagus rupture: Four observations.

Cita Chicago Style (17a ed.)

Ruso, Luis, Fernando González, Gustavo Bogliaccini, y Raúl Morelli. Spontaneous Esophagus Rupture: Four Observations. 1991.

Cita MLA (9a ed.)

Ruso, Luis, et al. Spontaneous Esophagus Rupture: Four Observations. 1991.