Não informado. (1987). Mapping Awareness and Gis in Europe. Miles Arnold.
Style de citation Chicago (17e éd.)Não informado. Mapping Awareness and Gis in Europe. Oxfordshire, Inglaterra: Miles Arnold, 1987.
Style de citation MLA (8e éd.)Não informado. Mapping Awareness and Gis in Europe. Miles Arnold, 1987.
Attention : ces citations peuvent ne pas être correctes à 100%.