TY  - BOOK
AU  - LO, C.P
AU  - Yeung, Albert K W
TI  - Concepts and techniques of geographic information systems
SN  - 9788120339149
U1  - 910.285/LO/C 
PY  - 2012///
CY  - New Delhi
PB  - PHI learning
KW  -  Miscellany
ER  -