MILLER, Frank. Sowing Crops by Aeroplane. Indian Forester, [S. l.], v. 62, n. 3, p. 175–175, 1936. DOI: 10.36808/if/1936/v62i3/20947. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/20947. Acesso em: 19 feb. 2026.