TY  - BOOK
AU  - Nag Prithvish
AU  -  Sengupta Smita
TI  - Introduction to geographical information system
SN  - 8180694399
U1  - U:(D69(B)), P8 
PY  - 2008///
CY  -  New Delhi 
PB  - Concept         
KW  - Geography
N1  - Bibliography: Chapterwise and P. 343-90; Appendix: P. 283-342
ER  -