00689cam a22002291  4500001001300000003000400013005001700017008004100034010001700075035002000092040004300112050002400155082001000179110004700189245003400236260002400270300002500294490002700319650003200346830006400378999001700442l  51000150 DLC20260227111542.0921102s1951    dcua         f000 0 eng c  al  51000150   a(OCoLC)26898617  aU.S. Dept. of Labor. LibrarycCLUdDLC00aHD6243.U5bA52 1951  a331.31 aUnited States.bBureau of Labor Standards.10aSo you're an issuing officer.  a[Washington,c1951]  a9 p.billus.c20 cm.1 aIts Bulletin,vno. 149 0aChild laborzUnited States. 0aBulletin (United States. Bureau of Labor Standards) ;v149.  c36748d36748