Cita APA (7a ed.)

Olascuaga, C., Borgno, L., & González, F. (1998). Perforated duodenal diverticulum.

Cita Chicago Style (17a ed.)

Olascuaga, Carlos, Laura Borgno, y Fernando González. Perforated Duodenal Diverticulum. 1998.

Cita MLA (9a ed.)

Olascuaga, Carlos, et al. Perforated Duodenal Diverticulum. 1998.