Cita APA

Hernández, F., Rivera, P., Sigarán, M. F., Aguilar-Ortiz, M., Miranda, J., Rodríguez-Jenkins, O., & Murillo, M. (1990). The first cases of Helicobacter pylori (Campylobacter pylori) reported from Costa Rica.

Chicago Style Citation

Hernández, Francisco, Patricia Rivera, Manuel F. Sigarán, Manuel Aguilar-Ortiz, Jorge Miranda, Olger Rodríguez-Jenkins, i Mario Murillo. The First Cases of Helicobacter Pylori (Campylobacter Pylori) Reported From Costa Rica. 1990.

Cita MLA

Hernández, Francisco, et al. The First Cases of Helicobacter Pylori (Campylobacter Pylori) Reported From Costa Rica. 1990.