TY  - BOOK
AU  - NAG, P
AU  - SENGUPTA, SMITA
TI  - Geographical information system: concepts and business oportunities
SN  - 81-8069-436-4
U1  - GEO 910.285425 
PY  - 2007///
CY  - New Delhi
PB  - Concept
KW  - GEOGRAPHIC INFORMATION SYSTEM(GIS)
ER  -