NACIS NEWS, M. NACIS News. Cartographic Perspectives, [S. l.], n. 06, p. 32, 1990. DOI: 10.14714/CP06.1117. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp06-nacis-news. Acesso em: 5 may. 2024.