KOCK, R. Population and veterinary status of black rhinos in the United Kingdom. Pachyderm, [S. l.], v. 9, n. 1, p. 29–32, 1987. DOI: 10.69649/pachyderm.v9i1.663. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/663. Acesso em: 28 apr. 2026.