NAIR, K. R. Sampling Techniques - Adaptation of Modern Statistical Methods to the Estimation of Forest Areas, Timber Volumes, Growth and Drain. Indian Forester, [S. l.], v. 76, n. 1, p. 31–35, 1950. DOI: 10.36808/if/1950/v76i1/23184. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/23184. Acesso em: 10 jul. 2025.