TY  - BOOK
AU  - Copi, Irving M.
AU  - Cohen, Carl
TI  - Introduction to logic
SN  - 29461928
U1  - 160 
PY  - 1990///
CY  - New York
PB  - Macmillan Publishing Co. 
KW  - Philosophy-Philosophical logic-Logic
N1  - The uses of language,deduction,induction
ER  -