TY  - BOOK
AU  - Copi, I. M. and Cohen, C
TI  - INTRODUCTION TO LOGIC
SN  - 9788120324961
AV  - BC 108 .C69 2002 
PY  - 2002///
CY  - New Jersey
PB  - Prentice- Hall inc
KW  -  Logic
N1  - Includes bibliographical references and index
ER  -