Copi, Irving M Cohen, Carl <br/><br/>
Introduction to logic 

 - 11th ed  
 - New Delhi  PHI  2002 
 - xxi+647 
<br/><br/><label>Subjects--Topical Terms: </label><br/>logic
<br/><br/><label>Dewey Class. No.: </label>160  COP;2  R1