CROPSEY, L. M. Show ring age determination: Art, not an exact science. The Bovine Practitioner, [S. l.], v. 1973, n. 8, p. 61–62, 1973. DOI: 10.21423/bovine-vol1973no8p61-62. Disponível em: https://bovine-ojs-tamu.tdl.org/bovine/article/view/1828. Acesso em: 14 jul. 2024.