TY  - BOOK
AU  - Nag, Prithvish
AU  - Sengupta, Smita
TI  - Geographical information system: concepts and business opportunities
SN  - 81-8069-435-6
U1  - 910.285 NAG-G 
PY  - 2007///
CY  - New Delhi
PB  - Concept Publishing
KW  - Geographic information systems
KW  - Economic aspects
KW  - India
ER  -