TY  - BOOK
AU  - Burrough, Peter A.
AU  - McDonnell,Rachael A.
TI  - Principles of geographical informatipon systems
SN  - 9780198233657
U1  -  910.285 
PY  - 1998///
CY  - Oxford,USA
PB  - Oxford University Press
KW  - Geographic information systems
ER  -