APA način citiranja

González Ballar, R. (2014). The Payment for Environmental Services in Costa Rica.

Čikaški stil citiranja

González Ballar, Rafael. The Payment for Environmental Services in Costa Rica. 2014.

MLA način citiranja

González Ballar, Rafael. The Payment for Environmental Services in Costa Rica. 2014.

Upozorenje: Ovi citati možda nisu uvijek 100% točni.