TY  - GEN
AU  - Berry, Joseph K.
TI  - Spatial reasoning for effective GIS
SN  - 1882610148
PY  - 1995///
CY  - Fort Collins
PB  - GIS World Books
KW  - GEAGRAPHIC INFORMATION SYSTEMS
KW  - GIS
N1  - A collection of mathematical formulae by Nigel Waters included
ER  -