TY  - BOOK
AU  - DeMers, Michael N  .
TI  - Fundamentals of geographic information systems / 
U1  - 025.0691 
PY  - 2009///
CY  - New York : 
PB  - John Wiley & Sons , 
KW  - Geographic information systems
KW  - Geographical Information Systems
KW  - GIS
ER  -