Standard Symbols and Colours for Forest Maps. Indian Forester, [S. l.], v. 45, n. 9, p. 465–470, 1919. DOI: 10.36808/if/1919/v45i9/18251. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/18251. Acesso em: 5 dec. 2025.