TY  - GEN
AU  - Lo , C.P.
AU  - Yeung , Albert K.W
TI  - Concepts and techniques of geographic information systems
SN  - 9788120322301
U1  - 910.285 
PY  - 2005///
CY  - New Delhi
PB  - Prentice-Hall
KW  - GEOGRAPHY
KW  - TECHNIQUES
KW  - CONCEPTS
KW  - INFORMATION SYSTEMS
ER  -