The eight-hour day in federal and state legislation;  summary of the state and federal "eight-hour laws" in effect in the United States: 1920 (2d ed.) 

 - Washington,  Govt. print. off.,  1921. 
 - 14 p.  23 cm. 
 - Bulletin  no. 5 .
<br/><br/> At head of title: U. S. Department of labor. W. B. Wilson, secretary. Women's bureau. Mfary Anderson, director. 
<br/><br/><label>LCCN: </label>l  21000015  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eight-hour movement.<br/>Labor laws and legislation--United States.
<br/><br/><label>LC Class. No.: </label>HD6093  / .A35 no. 5