Copi, Irving M. <br/><br/>
Introduction to logic  [Book] / 
Irving M. Copi, Carl Cohen. 
 - 11th ed. 
 - New Delhi: :  Pearson Education (Singapore),  c2002. 
 - xxi, 647 p. :  ill. ;  25 cm. 
<br/><br/> Origionally Published by Prentice Hall. 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>8178089661 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.
<br/><br/><label>Dewey Class. No.: </label>160