00785cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040002600111042001200137050001900149110003200168245006000200260001800260300001800278500012100296650002700417650001700444650002000461710006200481l  49000093 DLC20260227111541.0800207s1949    sz            100 0 eng    al  49000093   a(OCoLC)5963971  aDLCcNBuUdOCoLCdDLC  apremarc00aHD5119b.C6 I52 aInternational Labour Office10aHours of work in coal mines.bForth item on the agenda.  aGeneva,c1949  a58 p.c24 cm.  aAt head of title: Report 4. International Labour Organisation. Coal Mines Committee, 3d sess., Pittsburg, Apr. 1949. 0aCoal mines and mining. 0aCoal miners. 0aHours of labor.2 aInternational Labour Organisation.bCoal Mines Committee.