Vicente-Chandler, J. et al. 1961. Effects of Nitrogen Fertilization and Frequency of Cutting on the Yield and Composition of Pangola Grass in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico. 45, 1 (Jan. 1961), 37–45. DOI:https://doi.org/10.46429/jaupr.v45i1.12111.