TY  - BOOK
AU  - Gurugnanam, B.
TI  - Geographic information system
SN  - 9788190851282 
U1  - 910.285 21st ed.
PY  - 2009///
CY  - New Delhi
PB  - New India Publishing
KW  - Geographic Information systems
KW  - Remote sensing
N1  - Index: pp 189-93
ER  -