UNWIN, W. C. Extract from the Imperial Institute Journal. Indian Forester, [S. l.], v. 25, n. 10, p. 410–414, DOI: 10.36808/if/1899/v25i10/15810. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/15810. Acesso em: 4 dec. 2025.