Sotomayor-Ríos, Antonio, Salvio Torres-Cardona, and Adolfo Quiles-Belén. 1998. “Response of Forage Sorghums Millo Blanco and Greenleaf Sudangrass and Their Hybrids to Planting Dates”. The Journal of Agriculture of the University of Puerto Rico 82 (3-4):151-62. https://doi.org/10.46429/jaupr.v82i3-4.4073.