López García, Justo, and Rafael Pérez Pérez. “Effect of Pruning and Harvesting Methods On Guava Yields”. The Journal of Agriculture of the University of Puerto Rico 61, no. 2 (April 1, 1977): 148–151. Accessed December 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/10451.