MASON, V. W. Frank H. Galbraith’s Railway Mail Service Maps, 1897. Cartographic Perspectives, [S. l.], n. 41, p. 24–43, 2002. DOI: 10.14714/CP41.562. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp41-mason. Acesso em: 19 sep. 2024.