Mariota Trías, F., and B. G. Capó. “Applicability of the Fertilizer-Yield Equation to Production of Sugar Per Acre in Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico 56, no. 3 (July 1, 1972): 193–200. Accessed November 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/10825.