TY  - BOOK
AU  - Chang, Kang_tsung
TI  - Introduction to geographic information systems
SN  - 9780070658981
AV  - G70.212.C42 2008 
PY  - 2008///
CY  - New Delhi
PB  - Tata McGraw-Hill publishing Company
KW  - Geographic information system
N1  - Includes index
ER  -