TY  - BOOK
AU  - Introduction to logic
AU  - Copi,Irving M.
TI  - Introduction to logic
SN  - 81-7758-185-6
U1  - 160 
PY  - 2006///
CY  - Delhi
PB  - Pearson Education
KW  - Philosophy-Logic
N1  - Includes glossary and index
ER  -