Copi, Irving M,  <br/><br/>
Informal logic 

 - xi, 354 pages ;   25 cm 
<br/><br/><label>ISBN: </label>0023249404 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic
<br/><br/><label>Dewey Class. No.: </label>160