Sinnott-Armstrong, Walter,  <br/><br/>
Understanding arguments :  an introduction to informal logic / 
Walter Sinnott-Armstrong, Robert J. Fogelin. 
 - 8th ed. 
 - xvi, 560 p. :   ill. ;   24 cm. 
 - Cengage advantage books .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780495603962 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.<br/>Reasoning.