The American adventure into the twentieth century 1880-1940 / 
prepared by the social science staff of the Educational Research Council of America 
 - Boston :  Allyn and Bacon,  1977 
 - 232 p. :  ill. ;  26 cm. 
<br/><br/><label>LCCN: </label>75-40770 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--History--19th century