Yazman, J.A., McDowell, R.E., Cestero, H., Román-García, F. and Arroyo-Aguilu, J.A. 1979. Supplementation of Dairy Cows Grazing Intensively Managed Tropical Grass Pastures at Two Stocking Rates. The Journal of Agriculture of the University of Puerto Rico. 63, 3 (Jul. 1979), 281–293. DOI:https://doi.org/10.46429/jaupr.v63i3.10286.