ROTTCHER, D.; TARARA, R. Case history of a nasal polyp in a black rhinoceros. Pachyderm, [S. l.], v. 15, n. 1, p. 46–48, 1992. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/743. Acesso em: 22 jul. 2024.