CHACKO, V. J. Swedish Forests and National Forest Surveys. Indian Forester, [S. l.], v. 90, n. 10, p. 676–680, 1964. DOI: 10.36808/if/1964/v90i10/25031. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/25031. Acesso em: 4 dec. 2025.