TY  - BOOK
AU  - Harder,Christian
AU  - Ormsby,Tim
AU  - Balstrøm,Thomas
TI  - Understanding GIS: an ArcGIS project workbook 
SN  - 9781589482425
PY  - 2011///
CY  - Redlands, California
PB  - Esri Press
KW  - ArcGIS
KW  - Geographic information systems
N1  - Includes index
ER  -