Cita APA (7th ed.)
Krzysztof Janowicz, M. R. GeoSpatial Semantics: Third International Conference, GeoS 2009, Mexico City, Mexico, December 3-4, 2009, Proceedings. Springer.
Cita Chicago (17th ed.)
Krzysztof Janowicz, Martin Raubal. GeoSpatial Semantics: Third International Conference, GeoS 2009, Mexico City, Mexico, December 3-4, 2009, Proceedings. Berlín, Alemania: Springer.
Cita MLA (9th ed.)
Krzysztof Janowicz, Martin Raubal. GeoSpatial Semantics: Third International Conference, GeoS 2009, Mexico City, Mexico, December 3-4, 2009, Proceedings. Springer.
Atenció: Aquestes cites poden no estar 100% correctes.