01531oam 2200505 450 991071156660332120181102092558.0(CKB)5470000002484384(OCoLC)953259185(OCoLC)944376814(OCoLC)995470000002484384(EXLCZ)99547000000248438420160708d1949 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierCoal resources of Montana /by John X. Combo [and three others]Washington, D.C. :United States Department of the Interior, Geological Survey,1949.1 online resource (28 pages) illustrationsGeological Survey circular ;53"August 1949."Includes bibliographical references (pages 24-26) and index.Coal mines and miningMontanaCoalMontanaCoalfastCoal mines and miningfastMontanafastCoal mines and miningCoalCoal.Coal mines and mining.Combo John X(John Xavier),1922-1394272Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCEOCLCAGPOBOOK9910711566603321Coal resources of Montana3451409UNINA