WALKER, C. Black rhinos sold to private owner in Southern Africa. Pachyderm, [S. l.], v. 14, n. 1, p. 48–48, 1991. DOI: 10.69649/pachyderm.v14i1.730. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/730. Acesso em: 1 may. 2026.