Dubofsky, Melvyn <br/><br/>
The United States in the twentieth century 
Melvyn Dubofsky, Athan Theoharis, Daniel M. smith. 
 - Englewood Cliffs, N.J.  Prentice HAll  c1978. 
 - xiv, 545 p.  ill.  24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0139387129 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--History--20th century.