Copi, Irving M. <br/><br/>
Introduction to logic 
Irving M. Copi. 
 - 7th ed. 
 - New York  London  Macmillan  Collier Macmillan  c1986. 
 - xiv, 617 p.  ill. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0023250208 
<br/><br/><label>LCCN: </label>85013751  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic
<br/><br/><label>Dewey Class. No.: </label>160 C783i7 E