Mitchell, A. The ESRI guide to GIS analysis: Spatial measurements y statistics.
Cita Chicago (17th ed.)Mitchell, Andy. The ESRI Guide to GIS Analysis: Spatial Measurements Y Statistics.
Cita MLA (8th ed.)Mitchell, Andy. The ESRI Guide to GIS Analysis: Spatial Measurements Y Statistics.
Atenció: Aquestes cites poden no estar 100% correctes.