TY  - BOOK
AU  - Davis,Bruce Ellsworth
TI  - GIS: a visual approach 
SN  - 1566900980
AV  - G70.212 .D38 1996
PY  - 1996///
CY  - Santa Fe, NM
PB  - OnWord Press
KW  - Geographic information systems
N1  - Includes index
ER  -