Vargas-Leitón, Bernardo, Yamil Marín-Marín, and Juan José Romero-Zúñiga. “ Jersey and Holstein×Jersey in Costa Rica”. Agronomía Mesoamericana 23, no. 2 (December 1, 2012): 329–342. Accessed April 18, 2024. https://revistas.ucr.ac.cr/index.php/agromeso/article/view/6533.