SIEMER, J. London: A Life in Maps. Cartographic Perspectives, [S. l.], n. 60, p. 71–72, 2008. DOI: 10.14714/CP60.234. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp60-siemer. Acesso em: 21 sep. 2024.