APA način citiranja

Pérez, E., Müller, E., Soderquist, L., Rodrigues Martínez, H., & Chacón, J. (1999). Breeding soundness evaluation of extensively managed bulls in Costa Rica.

Čikaški stil citiranja

Pérez, E., E. Müller, L. Soderquist, H. Rodrigues Martínez, i Jorge Chacón. Breeding Soundness Evaluation of Extensively Managed Bulls in Costa Rica. 1999.

MLA način citiranja

Pérez, E., et al. Breeding Soundness Evaluation of Extensively Managed Bulls in Costa Rica. 1999.