TY  - BOOK
AU  - Heywood, I & Others
TI  - An Introduction to Geographical Information Systems
SN  - 8178089823
U1  - 620.8 
PY  - 2002///
PB  - Pearson India Education Service Pvt. Ltd.
KW  - CIVI
KW  - C-13
KW  - C-24
ER  -