TY  - BOOK
AU  - Lo,C P.
AU  - Yeung,Albert K W  [ joint author ]
TI  - Concepts and techniques of geographic information systems / 
SN  - 9788120339149
U1  - 910.285 
PY  - 2009///
CY  - New Delhi : 
PB  - PHI Learning , 
KW  - GIS
ER  -