ANONYMOUS. Aerial Survey Working Group. Working Group Discussion One. [Proceedings of the AfESG meeting, Victoria Falls, Zimbabawe, Nov 17 to 22 1992]. Pachyderm, [S. l.], v. 16, n. 1, p. 21–23, 1993. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/751. Acesso em: 3 jul. 2024.