The Supply of Railway Sleepers. Indian Forester, [S. l.], v. 25, n. 7, p. 282–284, DOI: 10.36808/if/1899/v25i7/15794. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/15794. Acesso em: 4 dec. 2025.