APA način citiranja

Fonseca, L., Murillo, G. A., Guadamúz, L., Spínola, R. M., & Valverde, R. A. (2009). Downward but stable trend in the abundance of arribada olive ridley sea turtles (Lepidochelys olivccea) at Nancite Beach, Costa Rica (1971-2007).

Čikaški stil citiranja

Fonseca, Luis, Grettel A. Murillo, Lenín Guadamúz, Romero M. Spínola, i Roldán A. Valverde. Downward but Stable Trend in the Abundance of Arribada Olive Ridley Sea Turtles (Lepidochelys Olivccea) At Nancite Beach, Costa Rica (1971-2007). 2009.

MLA način citiranja

Fonseca, Luis, et al. Downward but Stable Trend in the Abundance of Arribada Olive Ridley Sea Turtles (Lepidochelys Olivccea) At Nancite Beach, Costa Rica (1971-2007). 2009.