Iv World Forestry Congress. Indian Forester, [S. l.], v. 81, n. 4, p. 218–223, 1955. DOI: 10.36808/if/1955/v81i4/23941. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/23941. Acesso em: 29 oct. 2025.