PARKER, I. S.; GRAHAM, A. D. . Part I Part I. Policies of confusion 1960-1978: Elephant ivory, rhino horn and hippo teeth. Pachyderm, [S. l.], v. 61, p. 153–160, 2020. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/16. Acesso em: 7 may. 2024.