APA način citiranja

Sierra Ramos, R., Une, C. A., Ramírez Mayorga, V., González Lutz, M. I., Ramírez, J. A., de Mascarel, A., . . . Mégraud, F. (2006). Association of serum pepsinogen with atrophic body gastritis in Costa Rica.

Čikaški stil citiranja

Sierra Ramos, Rafaela, et al. Association of Serum Pepsinogen With Atrophic Body Gastritis in Costa Rica. 2006.

MLA način citiranja

Sierra Ramos, Rafaela, et al. Association of Serum Pepsinogen With Atrophic Body Gastritis in Costa Rica. 2006.