Freidel, Frank Burt. <br/><br/>
America in the twentieth century / 
Frank Burt Freidel. 
 - New York :  Knopf,  1960. 
 - 593 p.  illus.  24 cm. 
<br/><br/>Bibliography: p. [573]-593. 
<br/><br/><label>LCCN: </label>60006160  
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--History--20th century.
<br/><br/><label>LC Class. No.: </label>002 E 741  / F862a 1960 
<br/><br/><label>Dewey Class. No.: </label>973.91