NACIS XVIII PROGRAM, M. NACIS XVIII Program. Cartographic Perspectives, [S. l.], n. 16, p. 29–31, 1993. DOI: 10.14714/CP16.964. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp16-nacis-xviii-program. Acesso em: 5 may. 2024.