01216cam a22002891  45000010008000000030008000080050017000160080041000330100017000740350019000910400035001100420012001450500031001570820013001881100032002012450047002332600050002803000051003304900068003815000054004495000210005035050058007136500027007716500017007986500016008158100095008316437021BD-DhUL20170319173141.0781101s1938    sz a          001 0 eng    al  39000015   a(OCoLC)4337002  aDLCcCoDUdOCoLCdDLCdBD-DhUL  apremarc00aHD4813b.I4 ser. B, no. 31  a338bINW2 aInternational Labour Office14aThe world coal-mining industry :bVol. 1 /  aGeneva :c1938.bInternational Labour Office,  a258 p. :btables, diagrs. (part fold.)c24 cm.1 aIts Studies and reports, Series B (Economic conditions)vno. 31  aAt head of title: International labour office ...  a"Originally prepared and distributed in proof as a 'white' report, intended to serve as a basis for discussion at the Technical tripartite conference on the coal-minimg industry ... in Geneva in May 1938."0 av. 1. Economic conditions.-- v. 2. Social conditions. 0aCoal mines and mining. 0aCoal miners. 0aCoal trade.2 aInternational Labour Office.tStudies and reports, Series B (Economic conditions)vno. 31.