Alers-Alers, S., Samuels, G., & Landrau, Jr., P. (1960). Influence of Time of Planting on the Growth of Sugarcane Variety P.R. 980 at Río Piedras. The Journal of Agriculture of the University of Puerto Rico, 44(2), 45–52. https://doi.org/10.46429/jaupr.v44i2.12092