APA Zitierstil

Gorr, W. L. (2007). Learning and using geographic information systems: ArcGIS edition. Boston, MA: Thomson Course Technology.

Chicago Zitierstil

Gorr, Wilpen L. Learning and Using Geographic Information Systems: ArcGIS Edition. Boston, MA: Thomson Course Technology, 2007.

MLA Zitierstil

Gorr, Wilpen L. Learning and Using Geographic Information Systems: ArcGIS Edition. Boston, MA: Thomson Course Technology, 2007.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.