Denyer, Percy. “Historic-Prehistoric Earthquakes, Seismic Hazards, and Tertiary and Quaternary Geology of the Gandoca-Manzanillo National Wildlife Refuge, Limón, Costa Rica”. Revista de Biología Tropical 46, no. S6 (December 1, 1998): 237–250. Accessed December 19, 2024. https://revistas.ucr.ac.cr/index.php/rbt/article/view/29831.