01257oam 2200397Ia 450 991069683440332120080728090645.0(CKB)5470000002382539(OCoLC)76944325(EXLCZ)99547000000238253920061211d2006 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierNatural bitumen resources of the United States[electronic resource][Reston, Va.] :U.S. Dept. of the Interior, U.S. Geological Survey,[2006]2 unnumbered pages digital, PDF fileNational assessment of oil and gas fact sheetFact sheet ;2006-3133Title from title screen (viewed on July 25, 2008)."November 2006."Includes bibliographical references.BitumenUnited StatesOil sandsUnited StatesBitumenOil sandsGeological Survey (U.S.)GISGISGPOBOOK9910696834403321Natural bitumen resources of the United States3202043UNINA