TY  - BOOK
AU  - Copi, Irving M.
TI  - Introduction to logic
SN  - 8120309421
U1  - 160 
PY  - 1968///
CY  - New York
PB  - Macmillan
KW  - Logic
KW  - Argumentation
KW  - Reasoning
KW  - Deduction (logic)
KW  - Introcution (logic)
N1  - Library has 4th edition also
ER  -