Copi, Irving M. <br/><br/>
Introduction to logic / 
by Irving M. Copi. 
 - 5th ed. 
 - New York :  MacMillan,  1978. 
 - 590 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0023248807 
<br/><br/><label>LCCN: </label>77-007041 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.