Copi, Irving M. <br/><br/>
Introduction to logic / 
Irving M. Copi 
 - 7th ed 
 - New York :  Macmillan,  1986 
 - 617 p 
<br/><br/><label>ISBN: </label>0023250208 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.
<br/><br/><label>Dewey Class. No.: </label>160  / C783I