Arozarena-Llopis, I., & Gutiérrez-Echevarría, A. (2016). Undercurrent on the beaches of Costa Rica: A major problem.
Čikaški stil citiranjaArozarena-Llopis, Isabel, i Alejandro Gutiérrez-Echevarría. Undercurrent On the Beaches of Costa Rica: A Major Problem. 2016.
MLA način citiranjaArozarena-Llopis, Isabel, i Alejandro Gutiérrez-Echevarría. Undercurrent On the Beaches of Costa Rica: A Major Problem. 2016.
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