Não informado. (2003). Geospatial Solutions. Advanstar Communications.
Style de citation Chicago (17e éd.)Não informado. Geospatial Solutions. Duluth, Minn: Advanstar Communications, 2003.
Style de citation MLA (8e éd.)Não informado. Geospatial Solutions. Advanstar Communications, 2003.
Attention : ces citations peuvent ne pas être correctes à 100%.