Copi, Irving M. <br/><br/>
Introduction to logic / 
by Irving M. Copi. 
 - 4th ed. 
 - New York :  MacMillan,  1972. 
 - xii, 540 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.