NACIS NEWS, M. NACIS News. Cartographic Perspectives, [S. l.], n. 04, p. 23, 1989. DOI: 10.14714/CP04.1148. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp04-nacis-news. Acesso em: 15 may. 2024.