Sinclair, Upton  1878-1968. <br/><br/>
The jungle / 
by Upton Sinclair ; with an introduction by Ronald Gottesman. 
 - New York :  Penguin Books,  1985. 
 - xxxv, 411 p. ;  19 cm. 
 - The Penguin American library .
<br/><br/> Previous ed.: New York : Penguin Books, 1974. 
<br/><br/>Bibliography: p. xxxiii-xxxv. 
<br/><br/><label>ISBN: </label>0140390316 
<br/><br/><label>LC Class. No.: </label>PS3537.I85  / J85 1985 
<br/><br/><label>Dewey Class. No.: </label>813/.52