Rodríguez, A. J., R. Guadalupe, and J. R. Cruz. “Quality Grading of Locally Grown Snap Beans for the Fresh Market”. The Journal of Agriculture of the University of Puerto Rico 63, no. 2 (April 1, 1979): 223–228. Accessed November 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/10279.