TY  - BOOK
AU  - LO,C.P.
AU  - YEVNG,ALBERT K.W.
TI  - CONCEPTS AND TECHNIQUES OF GOEGRAPHIC INFORMATION SYSTEMS
SN  - 8120322304
U1  - 551/LO/YEV 
PY  - 2006///
CY  - NEW DELHI.
PB  - PRENTICE HALL OF INDIA PVT. LTD., NEW DELHI.
ER  -