Copi, Irving M. <br/><br/>
Introduction to logic / 
Irving M. Copi 
 - 6th ed 
 - New York  Macmillan Pub  1982 
 - 604p.  ill.  24cm. 
<br/><br/><label>ISBN: </label>002324920X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic