TY  - BOOK
AU  - Heywood, Ian 
AU  - Carver, Steve 
AU  - Cornelius, Sarah 
TI  - An Introduction to Geographical Information Systems
SN  - 9780273722595
U1  - 910.285 
PY  - 2011///
CY  - New Delhi
PB  - Pearson Education
KW  - Geographic Information System 
KW  - GIS
ER  -