TY  - GEN
AU  - Chang, Kang-Tsung.
TI  - Introduction to geographic information systems
SN  - 9780073051154 (hard copy : alk. paper)
U1  - 910.285 CHA 
PY  - 2008///
CY  - Boston
PB  - McGraw-Hill
KW  - Geographic information systems
ER  -