Medina, R., A. D. Frame, P. Bendezú, A. Pérez, and A. Narváez. “THE EFFECT OF CLORSULON ON LEVELS OF FOUR INORGANIC ELEMENTS IN MILK”. The Journal of Agriculture of the University of Puerto Rico, vol. 74, no. 3, July 1990, pp. 327-9, doi:10.46429/jaupr.v74i3.6668.