Schmidt, Stefanie, Matthias Wolff, and José A Vargas. 2002. “Population Ecology and Fishery of <i>Cittarium pica</i≫ (Gastropoda: Trochidae) on the Caribbean Coast of Costa Rica”. Revista De Biología Tropical 50 (3-4):1079–1090. https://revistas.ucr.ac.cr/index.php/rbt/article/view/16627.