Caro-Costas, Rubén, and José Vicente-Chandler. “Effects of Two Cutting Heights on Yields of Five Tropical Grasses”. The Journal of Agriculture of the University of Puerto Rico 45, no. 1 (January 1, 1961): 46–49. Accessed March 28, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/12112.