Litwack, Leon F <br/><br/>
The United States / 
Leon F Litwack ; Winthrop D 
 - New Delhi:  Prentice Hall Of India Pvt Ltd,  1967. 
 - 427p 
<br/><br/><label>ISBN: </label>0139379207 
<br/><br/><label>Dewey Class. No.: </label>973  / LIT/U