Rodríguez, K., and J. A. Vargas. “Preface: Aquatic Ecosystems of Costa Rica II”. Revista de Biología Tropical 49, no. S2 (December 1, 2001): xiii–xiv. Accessed April 6, 2025. https://revistas.ucr.ac.cr/index.php/rbt/article/view/26246.