KOPNINA, Helen. Cafaro & Crist, "Life on the Brink: Environmentalists Confront Overpopulation". The Trumpeter, [S. l.], v. 29, n. 1, p. 64–72, 2013. Disponível em: https://trumpeter.athabascau.ca/index.php/trumpet/article/view/1323. Acesso em: 28 apr. 2024.