Não informado. (1990). Cartography and geographic information systems. American Congress on Surveying and Mapping.
Style de citation Chicago (17e éd.)Não informado. Cartography and Geographic Information Systems. Bethesda, Md: American Congress on Surveying and Mapping, 1990.
Style de citation MLA (8e éd.)Não informado. Cartography and Geographic Information Systems. American Congress on Surveying and Mapping, 1990.
Attention : ces citations peuvent ne pas être correctes à 100%.