ELLIOTT, F. A. Airplane Patrol of the Forests. Indian Forester, [S. l.], v. 47, n. 4, p. 182–186, 1921. DOI: 10.36808/if/1921/v47i4/18397. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/18397. Acesso em: 21 aug. 2025.