TY  - BOOK
AU  - Chang, Kang-Tsung.
TI  - Introduction to geographic information systems
SN  - 9780070658981
U1  - 910.285 
PY  - 2008///
CY  - New Delhi
PB  - Tata McGraw Hill
KW  - Geographic information systems
N1  - Includes bibliographical references and index
ER  -