TY  - BOOK
AU  - Martin David
TI  - Geographic Information Systems
SN  - 415125723
U1  - 910.285 MAR 
PY  - 1996///
CY  - London
PB  - Routledge
KW  -  information
KW  -  martin david
KW  -  socioeconomic
KW  -  systems
KW  - geographic
ER  -