CHOPRA, R. S. Timber Exploitation in the Punjab Hills. Indian Forester, [S. l.], v. 66, n. 12, p. 721–724, 1940. DOI: 10.36808/if/1940/v66i12/21705. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/21705. Acesso em: 21 aug. 2025.