TY  - BOOK
AU  - Copi,Irving M.
TI  - Informal logic
SN  - 0023249404
PY  - 1992///
CY  - New York
PB  - Macmillan
KW  - Logic
KW  - c1992
KW  - New York
KW  - paperback
KW  - sears
N1  - Includes index
ER  -