TY  - BOOK
AU  - CHANG,KANG TSUNG
TI  - Introduction to geographic information systems
SN  - 9789390185559
U1  - GEO 910.285425 
PY  - 2020///
CY  - chennai 
PB  - McGraw Hill
KW  - GEOGRAPHICAL INFORMATION SYSTEM ( GIS )
ER  -