Copi, Irving M., <br/><br/>
Symbolic logic 

 - 5th ed. /   Eastern Economy Edition. 
 - New Delhi  PHI Learning  1979 
 - xiii, 398 p.:  24 cm. 
 - Research - National Institute of Law Enforcement and Criminal Justice. .
<br/><br/> Includes bibliographical references and index.  
<br/><br/><label>ISBN: </label>9788120309708 
<br/><br/><label>Dewey Class. No.: </label>511.3 COP