May-Collado, Laura, Tim Gerrodette, John Calambokidis, Kristin Rasmussen, y Irena Sereg. «Patterns of Cetacean Sighting Distribution in the Pacific Exclusive Economic Zone of Costa Rica Based on Data Collected from 1979-2001». Revista de Biología Tropical 53, no. 1-2 (junio 1, 2005): 249–263. Accedido mayo 18, 2024. https://www.revistas.ucr.ac.cr/index.php/rbt/article/view/14556.