TY  - BOOK
AU  - Chang, Kang-tsung 
TI  - Introduction to Geographic Information Systems
SN  - 9780070658981
U1  - 910.285 
PY  - 2013///
CY  - New Delhi: 
PB  - McGraw Hill Education, 
KW  - Data Input
KW  - Geographic Information
KW  - Geography
KW  - Georelational Vector
ER  -