Lugo-López, M. A., H. A. Manfrinato, and E. J. Brenes. “Characterization of a Buried Latosol from Northern Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico 41, no. 2 (April 1, 1957): 119–126. Accessed April 25, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/12622.