Clark, Harold F.  1899- <br/><br/>
Recent economic changes and their meaning 
[by] Harold F. Clark, PH. D. 
 - [Columbus, O.,  New York,  American education press, inc.,  c1933] 
 - 23 p.  diagrs.  21 cm. 
 - Unit study booklet.  Modern problems series  no. 7. .
<br/><br/>"For further reading": p. 23. 
<br/><br/><label>LCCN: </label>ca 33000358  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machinery in the workplace.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--Economic conditions--1918-1945.
<br/><br/><label>LC Class. No.: </label>HC106.3  / .C63 
<br/><br/><label>Dewey Class. No.: </label>330.973