MARCHÁN, F. J.; RIVERA BRENES, L.; COLÓN, L. F. Carotenoids and vitamin a in the blood of dairy calves in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 34, n. 4, p. 316–321, 1950. DOI: 10.46429/jaupr.v34i4.12826. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/12826. Acesso em: 26 apr. 2024.