Why American Prairies are Treeless. Indian Forester, [S. l.], v. 38, n. 3, p. 143–143, 1912. DOI: 10.36808/if/1912/v38i3/17494. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/17494. Acesso em: 4 dec. 2025.