So you're an issuing officer. 

 - [Washington,  1951] 
 - 9 p.  illus.  20 cm. 
 - Its Bulletin,  no. 149 .
 - Bulletin (United States. Bureau of Labor Standards) ;  149. .
<br/><br/><label>LCCN: </label>l  51000150  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child labor--United States.
<br/><br/><label>LC Class. No.: </label>HD6243.U5  / A52 1951 
<br/><br/><label>Dewey Class. No.: </label>331.3