SHIRLEY, Hardy L. Opportunities in Forestry. Indian Forester, [S. l.], v. 69, n. 12, p. 489–494, 1943. DOI: 10.36808/if/1943/v69i12/22143. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/22143. Acesso em: 21 aug. 2025.