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