Haberyan, Kurt A., Sally P Horn, and Gerardo Umaña V. “Basic Limnology of Fifty-One Lakes in Costa Rica”. Revista de Biología Tropical 51, no. 1 (March 1, 2003): 107–122. Accessed May 2, 2024. https://revistas.ucr.ac.cr/index.php/rbt/article/view/15640.