00969cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035002000092040003000112042001200142050002500154110004800179245007400227260004800301300004000349490009400389500014000483500006000623650002000683650002400703l  29000060 DLC20260227111532.0890810s1929    dcu          f000 0 eng    al  29000060   a(OCoLC)20157999  aDLCcPELdPELdOCoLCdDLC  apremarc00aHD8051b.A62 no. 4741 aUnited States.bBureau of Labor Statistics.10aProductivity of labor in merchant blast furnaces ...bDecember, 1928.  aWashington,bU.S. Govt. print. off.,c1929.  aviii, 145 p.bincl. tables.c23 cm.0 aBulletin of the United States Bureau of labor statistics,vno. 474.  Miscellaneous series  aAt head of title:  U.S. Department of labor.  James J. Davis, secretary.  Bureau of labor statistics.  Ethelbert Stewart, commissioner.  aIssued also as House doc. no. 423, 70th Cong., 2d sess. 0aBlast furnaces. 0aLabor productivity.