TY  - BOOK
AU  - Longley, Paul A., ed.
AU  - Goodchild, Michael F., ed.
AU  - Maguire, David J., ed.
AU  - Rhind, David W., ed.
TI  - Geographical information systems : v.1 : principles and technical issues
SN  - 9780471331322
PY  - 1999///
CY  - New York
PB  - John Wiley
ER  -