SINGH, Bhai. Modified Smythies Hypsometer. Indian Forester, [S. l.], v. 88, n. 11, p. 854–857, 1962. DOI: 10.36808/if/1962/v88i11/24735. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/24735. Acesso em: 21 aug. 2025.