TY  - BOOK
AU  - Copi, Irving M
AU  - Cohen, Carl
TI  - Introduction to logic
SN  - 9780136141396
SN  - 200704175
U1  - 160 COP 
PY  - 2009///
CY  - Upper Saddle River, NJ
PB  - Pearson/Prentice Hall
KW  - Logic - Textbooks
N1  - Includes bibliographical references and index
ER  -