KETCHUM, J. World Views: Maps & Art. Cartographic Perspectives, [S. l.], n. 45, p. 68–70, 2003. DOI: 10.14714/CP45.499. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp45-ketchum. Acesso em: 25 apr. 2024.