Rivera Brenes, L., Marchán, F.J. and Cabrera, J.I. 1952. The utilization of grasses, legumes, and other forage crops for cattle feeding in Puerto Rico III. Comparison of fertilized guinea grass, para grass, tropical kudzu and guinea grass, and tropical kudzu. The Journal of Agriculture of the University of Puerto Rico. 36, 2 (Apr. 1952), 108–114. DOI:https://doi.org/10.46429/jaupr.v36i2.12790.