01178oam 2200385Ka 450 991069759570332120080910131655.0(CKB)5470000002388991(OCoLC)55733730(EXLCZ)99547000000238899120040624d1999 ua 0engtxtrdacontentcrdamediacrrdacarrierUSGS international activities in coal resources[electronic resource][Reston, Va.] :U.S. Dept. of the Interior, U.S. Geological Survey,[1999]4 unnumbered pages digital, PDF fileUSGS fact sheet ;FS-119-99Title from title screen (viewed June 24, 2004)."May 1999."Includes bibliographical references.Coal reservesCoalGeologyCoal reserves.CoalGeology.Geological Survey (U.S.)GPOGPOOCLCQGPOBOOK9910697595703321USGS international activities in coal resources3165773UNINA