TY  - BOOK
AU  - Gorr,Wilpen L.
AU  - Kurland,Kristen Seamens
TI  - Learning and using geographic information systems: ArcGIS edition 
SN  - 9781418835583
PY  - 2007///
CY  - Boston, Mass.
PB  - Thomson Course Technology
KW  - ArcGIS
KW  - Geographic information systems
N1  - Includes bibliographical references and index
ER  -