TY  - BOOK
AU  - Burrough, Peter A. & McDonnell, Rachael A.
TI  - Principles of geographical information systems
SN  - 978-0-19-922862-1
U1  - 910.285 Bur/McD 
PY  - 1998///
CY  - Oxfoed University Press, New York
ER  -