Esqueda-Esquivel, Valentín. “Evaluation of the Herbicides Crosser and Vaquero for Weed Control in Tropical Grasslands”. Agronomía Mesoamericana 14, no. 2 (September 19, 2003): 177–183. Accessed April 16, 2024. https://revistas.ucr.ac.cr/index.php/agromeso/article/view/11946.