Canada Starts Aerial Forest Patrol. Indian Forester, [S. l.], v. 45, n. 10, p. 352–353, 1919. DOI: 10.36808/if/1919/v45i10/18264. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/18264. Acesso em: 5 dec. 2025.