The Grapes of wrath / 
John Steinbeck ; introduction and notes by Robert DeMott. 
 - New York :  Penguin Books,  2006. 
 - lviii, 464 p. ;  20 cm. 
 - Penguin classics .
<br/><br/> Originally published: New York : Viking Press, 1939. 
<br/><br/>Includes bibliographical references (p. [xlvii]-lviii). 
<br/><br/><label>ISBN: </label>9780143039433