TY  - BOOK
AU  - Copi,Irving M.
AU  - Cohen,Carl
AU  - McMahon,K.D.
TI  - Introduction to logic
SN  - 9788131788653(pbk)
U1  - 160 
PY  - 2013///
CY  - New Delhi
PB  - Ht Media Ltd
KW  - Logic
KW  - Textbooks
N1  - Includes index
ER  -