TY  - BOOK
AU  - Heywood,Ian
TI  - An Introduction To Geographical Information Systems
SN  -  9788177587845
U1  - 910.285 
PY  - 2006///
CY  - Delhi
PB  - Pearson Education
KW  - Geographical Information Systems
KW  - Geography
N1  - Includes Index
ER  -