01050cam a22002651  4500001001300000003000400013005001700017008004100034010001700075035002000092040004700112042001200159050002500171110004800196245008600244260004800330300003700378440007100415440003600486500014000522500005500662650002600717650002000743650002100763l  31000043 DLC20260227111533.0910920s1931    dcua         f000 0 eng c  al  31000043   a(OCoLC)24423996  aLibrary U.S. Dept. of LaborcCLUdCLUdDLC  apremarc00aHD8051b.A62 no. 5251 aUnited States.bBureau of Labor Statistics.10aWages and hours of labor in the Portland cement industry, 1929 ... January, 1931.  aWashington,bU.S. Govt. Print. Off.,c1931.  aiii, 62 p. incl. tables.c23 cm. 0aBulletin of the United States Bureau of Labor Statistics,vno. 525 0aWages and hours of labor series  aAt head of title: United States Department of Labor. W.N. Doak, secretary. Bureau of Labor Statistics. Ethelbert Stewart, commissioner.  aIssued also as House doc. 579, 71st Cong., 3 sess. 0aWageszUnited States. 0aHours of labor. 0aPortland cement.