TY  - BOOK
AU  - Irving  , M. Copi
TI  - Introduction to Logic 
SN  - 8178089661
U1  - 160 COP 
PY  - 2003///
CY  - Singapore
PB  - Pearson education
KW  - Humanities & Natural Science
KW  - Philosophy
N1  - Includes Index
ER  -