Cita APA (7a ed.)

Guicheff, V., Villagran, R., Favat, J., & Ramoe, S. (1974). Spontaneous gastrocutaneous fistula.

Cita Chicago Style (17a ed.)

Guicheff, Vladimir, Raul Villagran, Juan Favat, y Sergio Ramoe. Spontaneous Gastrocutaneous Fistula. 1974.

Cita MLA (9a ed.)

Guicheff, Vladimir, et al. Spontaneous Gastrocutaneous Fistula. 1974.