TY  - GEN
AU  - IRVING M COPI
AU  - CARL COHEN
TI  - INTRODUCTION TO LOGIC
SN  - 9780367376239
U1  - 160 COP INT 
PY  - 1953///
PB  - ROUTLEDGE PUBLISHERS
KW  - 100 Philosophy & psychology
KW  - 160 Logic
KW  - PHILOSOPHY
ER  -