Cita APA (7a ed.)

Armand Ugon, A., Fronzuti, A., Perdomo, R., & Carrera, C. (1976). Intestinal ,occlusion by alimentary foreign bodies: Simple and combined-mechanism obstruction.

Cita Chicago Style (17a ed.)

Armand Ugon, Alfredo, Agustín Fronzuti, Roberto Perdomo, y Carlos Carrera. Intestinal ,occlusion by Alimentary Foreign Bodies: Simple and Combined-mechanism Obstruction. 1976.

Cita MLA (9a ed.)

Armand Ugon, Alfredo, et al. Intestinal ,occlusion by Alimentary Foreign Bodies: Simple and Combined-mechanism Obstruction. 1976.