HOWARD, S. H. Standard Symbols and Colours for Forest Maps. Indian Forester, [S. l.], v. 145, n. 9, p. 909–910, 2019. DOI: 10.36808/if/2019/v145i9/148730. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/148730. Acesso em: 27 dec. 2025.