Union wages and hours in the building trades / 
United States Department of Labor, Bureau of Labor Statistics. 
 - Washington, D.C. :  United States Department of Labor,  1961 
 - 43 p. ;  24 cm. 
 - Bulletin / United States Department of Labor, Bureau of Labor Statistics .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wages--Building trades--United States.<br/>Hours of labor--United States.
<br/><br/><label>Dewey Class. No.: </label>331.06173