Copi, I. M. and Cohen, C <br/><br/>
INTRODUCTION TO LOGIC 

 - 11th ed. 
 - New Jersey :  Prentice- Hall inc,  2002. 
 - xxi, 647p. :  ill. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9788120324961 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Logic.
<br/><br/><label>LC Class. No.: </label>BC 108 .C69 2002