Colón, E. D., and J. E. Berrocal. “AN EXPERIMENT ON DRAINAGE BY MEANS OF PUMPS - IN THE CANE PLOTS "MANUEL MOLINA", "FABRICA PAJAS 1a.", AND ‘FABRICA PAJAS 2a.’,‘ OF THE GIORGETTI COMPANY, IN THE MUNICIPALITY OF BARCELONETA, YEARS 1923-1925”. The Journal of Agriculture of the University of Puerto Rico 9, no. 4 (October 1, 1925): 257–272. Accessed November 23, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/15082.