TY  - BOOK
AU  - Chang,Kang-tsung
TI  - Introduction to geographic information systems / 
SN  - 0070606293
U1  - 910.285 
PY  - 2006///
CY  - New Delhi : 
PB  - Tata McGraw-Hill Publishing , 
KW  - GEOGRAPHIC INFORMATION SYSTEM
N1  - Includes index
ER  -