TY  - BOOK
AU  - Heywood, Ian
AU  - ...[et al.]
TI  - An introduction to geographical information systems
SN  - 9814053228
U1  - 910.285 
PY  - 2000///
CY  - England
PB  - Addison Wesley
KW  - Geographic Information System
KW  - GIS
ER  -