Lugo López, M. A., J. Juárez, and J. A. Bonnet. “Relative Infiltration Rate of Puerto Rican Soils”. The Journal of Agriculture of the University of Puerto Rico 52, no. 3 (July 1, 1968): 233–240. Accessed December 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/11510.