TY  - BOOK
AU  - Copi, Irving M.
AU  - Cohen, Carl, jt. auth.
TI  - Introduction to logic
SN  - 9788120324961
U1  - 160 COP-I 
PY  - 2002///
CY  - India
PB  - Prentice Hall of India
KW  - Logic --Textbooks
ER  -