Tergas, Luis E., Jaime Vélez-Santiago, and Angel V. Méndez-cruz. “Production of Grazed Tropical Grasses in Different Agroecosystems in Puerto Rico. III. Semiarid”. The Journal of Agriculture of the University of Puerto Rico 72, no. 2 (April 1, 1988): 211–219. Accessed December 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/7839.