Eighteenth Vana Mahotsava, Forest Research Institute & collegeo Dehra Dun, 12th July, 1967. Indian Forester, [S. l.], v. 93, n. 9, p. 661–662, 1967. DOI: 10.36808/if/1967/v93i9/25696. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/25696. Acesso em: 21 aug. 2025.