01355nam 2200385 450 991071363200332120200706132751.0(CKB)5470000002503356(OCoLC)1163631821(EXLCZ)99547000000250335620200706d2019 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierEconomic analysis for U.S. Geological Survey coal basin assessments /by Paul E. PierceReston, Virginia :U.S. Department of the Interior, U.S. Geological Survey,2019.1 online resource (v, 33 pages) color illustrationsOpen-file report,2331-1258 ;2019-1082Includes bibliographical references.Coal basinsUnited StatesCoal reservesUnited StatesMines and mineral resourcesEconomic aspectsUnited StatesCoal basinsCoal reservesMines and mineral resourcesEconomic aspectsPierce Paul E.1412227Geological Survey (U.S.),GPOGPOBOOK9910713632003321Economic analysis for U.S. Geological Survey coal basin assessments3535997UNINA