Rosado Carbó, G., and Ismael Carlo. “Effect of Testosterone Propionate on Growing Fattening Barrows”. The Journal of Agriculture of the University of Puerto Rico 54, no. 1 (January 1, 1970): 1–4. Accessed December 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/11106.