TY  - BOOK
AU  - Chang,Kang-Tsung
TI  - Introduction to geographic information systems: Geographic information systems 
SN  - 0072382112
AV  - G70.212 .C4735 2002
U1  - 910.285/ C454i 21
PY  - 2002///
CY  - Boston
PB  - McGraw-Hill, 
KW  - Geographic information systems
N1  - Includes bibliographical references and index; MICS
ER  -