01532oam 2200481 450 991070739610332120160706143519.0(CKB)5470000002463553(OCoLC)889600715(EXLCZ)99547000000246355320140829d1990 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierDefinition and world resources of natural bitumens /by Richard F. Meyer and Wallace de Witt, Jr[Reston, Va.] :Department of the Interior, U.S. Geological Survey,1990.[Washington, D.C.] :United States Government Printing Office.1 online resource (iv, 14 pages) illustrationsU.S. Geological Survey Bulletin ;1944Title from title screen (viewed Aug. 20, 2014).Includes bibliographical references.AsphaltBitumenAsphaltfastBitumenfastAsphalt.Bitumen.Asphalt.Bitumen.Meyer R. F(Richard F.),1921-1385584De Witt WallaceJr.,1920-2012,Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707396103321Definition and world resources of natural bitumens3456046UNINA