WARREN, W. D. M. Contour Trenching (Replies to Critics). Indian Forester, [S. l.], v. 68, n. 6, p. 300–304, 1942. DOI: 10.36808/if/1942/v68i6/22022. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/22022. Acesso em: 21 aug. 2025.