TY  - GEN
AU  - Lo, C. P.
AU  - Yeung, Albert K. W.
TI  - Concepts and techniques of geographic information systems:  
SN  - 8120322304
U1  - 901.285 
PY  - 2002///
CY  - New Delhi
PB  - Prentice-Hall of India Private Limited
KW  - Geography & History
ER  -