APA način citiranja

Valdez, M., Rodríguez, I., & Sittenfeld, A. (2004). Perception about biotechnology in university students in Costa Rica.

Čikaški stil citiranja

Valdez, Marta, Iris Rodríguez, i Ana Sittenfeld. Perception About Biotechnology in University Students in Costa Rica. 2004.

MLA način citiranja

Valdez, Marta, Iris Rodríguez, i Ana Sittenfeld. Perception About Biotechnology in University Students in Costa Rica. 2004.