TY  - BOOK
AU  - Heywood,D.Ian
AU  - Cornelius,Sarah
AU  - Carver,Steve
TI  - An introduction to geographical information systems
SN  - 0130611980
AV  - G70.212 H498I 2002
PY  - 2002///
CY  - Harlow
PB  - Prentice Hall
KW  - GEOGRAPHICA INFORMATION SYSTEMS
N1  - Includes bibliographical references and index
ER  -