AYRES, H. B. Timber Estimating. Indian Forester, [S. l.], v. 27, n. 12, p. 613–613, DOI: 10.36808/if/1901/v27i12/16030. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/16030. Acesso em: 4 dec. 2025.