Pérez-Escolar, R. and Lugo-López, M.A. 1957. The Effect of Synthetic Soil Conditioners on Soil-Aggregate Stability and the Production of Potatoes and Stringless Beans. The Journal of Agriculture of the University of Puerto Rico. 41, 2 (Apr. 1957), 127–133. DOI:https://doi.org/10.46429/jaupr.v41i2.12623.