LEVINE, Richard. Indians, conservation and George Bird Grinnell. American Studies, [S. l.], v. 28, n. 2, p. 41–55, 1987. DOI: 10.1353/amsj.v28i2.2510. Disponível em: https://journals.ku.edu/amsj/article/view/2510.. Acesso em: 3 may. 2024.