TY  - BOOK
AU  - Chang,Kang-tsung
TI  - Introduction to geographic information systems
SN  - 007124428x
AV  - G70.212 .C4735 2006
U1  - 910.285 
PY  - 2006///
CY  - Boston
PB  - McGraw-Hill
KW  - Geographic information systems
ER  -