Copi,Irving M <br/><br/>
Intoduction to logic 

 - 9th 
 - Prentice Hall of India, New Delhi  1994 
 - xix,729 
<br/><br/><label>ISBN: </label>81-203-0942-1 
<br/><br/><label>Dewey Class. No.: </label>160 Cop