TY  - GEN
AU  - Gupta, R.K.
AU  - Subhash Chander
TI  - Principles of geoinformatics
SN  - 8183600603
U1  - 910.285 
PY  - 2007///
CY  - New Delhi
PB  - Jain Brothers
N1  - Includes index
ER  -