May, Ernest R. <br/><br/>
The progressive era: 1901-1917 / 
by Ernest R. May and the editors of TimeLife Books. 
 - [S.l.] :  Time-Life,  1974. 
 - 176 p. :  ill. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--History--1898-1919.
<br/><br/><label>Dewey Class. No.: </label>973.8