TY  - BOOK
AU  - Copi,Irving M.\\ &
TI  - Introduction to logic\\\: .\\
SN  - 9788131720745
U1  - 160/C776i 
PY  - 2009///
CY  - Delhi
PB  - pearson.
KW  - Philosophy,logic
N1  - Includes index(649-670)
ER  -