01289nam 2200385 450 991071183010332120201001085520.0(CKB)5470000002487783(OCoLC)1182809195(EXLCZ)99547000000248778320200807d2018 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierTopics in coal geochemistry short course /by Allan KolkerReston, Virginia :U.S. Department of the Interior, U.S. Geological Survey,2018.1 online resource (x, 31 pages)Open-file report ;2018-1145Includes bibliographical references (pages 10-17).Topics in coal geochemistry CoalCompositionStudy and teachingGeochemistryStudy and teachingCoalCompositionStudy and teaching.GeochemistryStudy and teaching.Kolker Allan1389502Geological Survey (U.S.),United States.National Park Service.GPOGPOBOOK9910711830103321Topics in coal geochemistry3491965UNINA