Copi, Irving M. <br/><br/>
Introduction to logic /  
Irving M. Copi and Carl Cohen 
 - 7th ed.  
 - New Delhi :  Prentice Hall of India,   2007. 
 - 647 p. :   Figures;   25 cm .  
<br/><br/>Includes index and glossary 
<br/><br/><label>ISBN: </label>9788120324961 
<br/><br/><label>Dewey Class. No.: </label>160 COI