Smith, B. A., F. Sánchez-Nieva, M. A. González, and M. Matos-Maldonado. 1964. “A Comparison of Several Noninverting Ion-Exchange Systems Used in the Purification of Puerto Rican Sugarcane Juices”. The Journal of Agriculture of the University of Puerto Rico 48 (3):247-54. https://doi.org/10.46429/jaupr.v48i3.12992.