Lugo-López, M. A., and P. Landrau, Jr. “Practical Evaluation of Garbage Compost As a Fertilizer under Conditions in Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico 40, no. 2 (April 1, 1956): 110–117. Accessed April 25, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/12642.