TY  - BOOK
AU  - Demers Michael N. 
TI  - Fundamentals of geographic information systems / (Acc: 6182)
SN  - 9788126537211
U1  - 910.285 DEM 
PY  - 2009///
CY  - New Delhi : 
PB  - John Wiley and Sons, Inc, 
ER  -