TY  - BOOK
AU  - Copi, Irving M.
AU  - Cohen, Carl.
TI  - Introduction to logic
SN  - 9789810697563
AV  - CIR BC 108 C67 2010
PY  - 2010///
CY  - Jurong, Singapore : 
PB  - Pearson, 
KW  - Logic
KW  - Textbooks
N1  - Includes references and index
ER  -