TY  - BOOK
AU  - Olson, Robert Goodwin,
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
TI  - : elements of logic 
SN  - 2
PY  - 1969///46
CY  - New York
PB  - Harcourt, Brace & World
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Logic.;Semantics (Philosophy);Reasoning
N1  - 5
ER  -