PEARSON, Ralph S.; , I. F. S. Fire Protection and the Use of Drums as Fire Alarms. Indian Forester, [S. l.], v. 30, n. 7, p. 306–308, 1904. DOI: 10.36808/if/1904/v30i7/16390. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/16390. Acesso em: 4 dec. 2025.