TY  - BOOK
AU  - Huxhold, William E.
AU  - Beckett, P. H. T. 
TI  - An introduction to urban geographic information systems
T2  - Spatial Information Systems
SN  - 0195065352
U1  - 910.285 
PY  - 1991///
CY  - New York
PB  - Oxford University Press
ER  -