Tergas, Luis E., Jaime Vélez-Santiago, and Doralisa Vera de Saldaña. “Production of Grazed Tropical Grasses in Different Agroecosystems in Puerto Rico: I. Humid Mountain”. The Journal of Agriculture of the University of Puerto Rico 72, no. 1 (January 1, 1988): 99–108. Accessed December 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/6839.