TY  - BOOK
AU  - Copi, Irving M. 
AU  - Cohen, Carl
TI  - Introduction to logic
SN  - 9788120324961
U1  - 511.3 C791i11 
PY  - 2002///
CY  - New Delhi
PB  - Prentice-Hall of India Private Limited
KW  - Logic
ER  -