TY  - BOOK
AU  - David R. Green
TI  - GIS A Sourcebook for Schools
SN  - 0-7484-0270-5
U1  - 910.285 21 
PY  - 2001///
CY  - London
PB  - Taylor & Press
KW  - GIS A Sourcebook for Schools
N1  -  A Sourcebook
ER  -