TY  - BOOK
AU  - Demers,Michael N.
TI  - Fundamentals of geographic information systems
SN  - 9788126516865
U1  - 910.285 D394F3 
PY  - 2005///
CY  - New Delhi
PB  - John Wiley and Sons
KW  - Map basics
KW  - GIS data models
KW  - Cartographic modeling
KW  - Statistical surfaces
ER  -