TY  - BOOK
AU  - Chang,Kang-tsung
TI  - Introduction to geographic information systems
SN  - 9780073522906
U1  - 910.285/C382i 
PY  - 2014///
CY  - New York
PB  - Mc Graw Hill
KW  - Geographic information system
KW  - Cartography
KW  - Mapping
KW  - Topology
N1  - Bibliography:p. 411-414
ER  -