APA引文

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.

Citación estilo Chicago

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

MLA引文

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