00833cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040004200111042001200153050002200165110003300187245007300220260004900293300001800342500010600360650002000466650002700486711006100513999001700574l  36000038 DLC20260227111535.0780406s1935    sz            000 0 eng c  al  36000038   a(OCoLC)3783995  aU. S. Dept. of Labor. Libr.cCCCdDLC  apremarc00aHD7804b I7 1936a2 aInternational Labour Office.10aReduction of hours of work in coal mines.cSixth item on the agenda.  aGeneva,bInternational Labour Office,c1935.  a30 p.c25 cm.  aAt head of title: Questionnaire VI. International Labour Conference. Twentieth session, Geneva, 1936. 0aHours of labor. 0aCoal mines and mining.2 aInternational Labor Conferencen(20th :d1936 :cGeneva)  c36181d36181