TY  - BOOK
AU  - Heywood, Ian
AU  - Cornelius, Sarah
AU  - Carver, Steve
TI  - An introduction to geographical information systems
SN  - 8178089823
PY  - 2005///
CY  - Delhi
PB  - Pearson Education
KW  - Geographical information system
N1  - includes references, glossary and index
ER  -