TY  - BOOK
AU  - Lo,C P.
AU  - Yeung,Albert K W  .
TI  - Concepts and techniques of geographic information systems / 
SN  - 8120322304
U1  - 910.285 
PY  - 2003///
CY  - New Delhi : 
PB  - Prentice Hall of India , 
KW  - GEOGRAPHIC INFORMATION SYSTEM
N1  - Include index
ER  -