Copi, lrving M.  <br/><br/>
Introduction to logic 

 - New Delhi<br/>  Pearson Education  2006 
 - 687p. 
<br/><br/><label>ISBN: </label>8177581856 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LOGIC
<br/><br/><label>Dewey Class. No.: </label>160  / INT