TY  - BOOK
AU  - Heywood,Ian
AU  - Cornelius,Sarah
AU  - Carver,Steve
TI  - An Introduction to Geographic Information Sysytem
SN  - 9788131731932 (pbk)
U1  - 910.285 
PY  - 1998///,2011c
CY  - New Delhi.
PB  - Pearson
N1  - Included Index
ER  -