TY  - BOOK
AU  - Heywood,Ian
TI  - An Introduction to Geographical Information Systems
SN  - 9788131731932
U1  - 910.285 HEY 3rd. Ed
PY  - 2009///
CY  - New Delhi
PB  - Pearson
KW  - Information System
KW  - Geographical System
KW  - and Geography
ER  -