MORRISON, J. A Personalized National Atlas of the United States. Cartographic Perspectives, [S. l.], n. 20, p. 40–44, 1995. DOI: 10.14714/CP20.894. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp20-morrison. Acesso em: 4 may. 2024.