Copi, I. M. <br/><br/>
Symbolic Logic 

 - 5th ed. 
 - New Delhi:  Prentice-Hall,  2006. 
 - xiii, 397p. 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9788120309708 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Logic, Symbolic and mathematical.
<br/><br/><label>LC Class. No.: </label>BC 135 .C58 2006