TY  - BOOK
AU  - Nag, Prithvish
AU  - Sengupta, Smita
TI  - Introduction to Geographical Information System
SN  - 9788180694394
U1  - 910.285 
PY  - 2008///
CY  - New Delhi
PB  - Concept Publishing Company
KW  - Geographic Information - India
ER  -