BURKHART, R. L. A Review of the comparative efficacy of sulfonamides in cattle and economics of their use. The Bovine Practitioner, [S. l.], v. 1971, n. 6, p. 40–47, 1971. DOI: 10.21423/bovine-vol1971no6p40-47. Disponível em: https://bovine-ojs-tamu.tdl.org/bovine/article/view/217. Acesso em: 19 apr. 2024.