00830cam a22002292  4500001001300000003000500013005001700018008004100035040001800076074000900094086002300103099002300126245014800149260003100297300001500328500004100343500004400384650005200428710008300480949001800563999001900581hsl000662468DGPO20170826152443.0100217s1959    dcu          f000 0 eng d  aGPOcGPOdMvI  a10400 aY 4.IN 8/13:C 63/2  aY 4.IN 8/13:C 63/200aCoal research :bhearing before Subcommittee on Minerals, Materials, and Fuels, 86th Congress, 1st session on S. 49 and S. 1362, June 10, 1959.  a[Washington, D.C.],c1959.  aiii, 70 p.  aDistribution made by issuing office.  aCRDP Program Historic Shelflist record. 0aCoal mines and miningxResearchzUnited States.1 aUnited States.bCongress.bSenate.bCommittee on Interior and Insular Affairs.  aBEVbFed Docs  c261667d261667