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100   $a20210818d2021      ua             0
101 0 $aeng
135   $aur|||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 13$aAn assessment of the economic potential of lignite and leonardite resources in the Williston Basin, North Dakota /$fby Brian N. Shaffer
210  1$aReston, Virginia :$cU.S. Department of the Interior, U.S. Geological Survey,$d2021.
215   $a1 online resource (vi, 14 pages) $ccolor illustrations, color maps
225 1 $aOpen-file report ;$v2020-1135
300   $a"Prepared in cooperation with the Bureau of Land Management."
300   $a"Energy Resources Program."
320   $aIncludes bibliographical references (pages 13-14).
606   $aLignite$zWilliston Basin
606   $aWater levels$zWilliston Basin
606   $aLignite mines and mining$zWilliston Basin
606   $aEnergy development$zWilliston Basin$xMathematical models
615  0$aLignite
615  0$aWater levels
615  0$aLignite mines and mining
615  0$aEnergy development$xMathematical models.
700   $aShaffer$b Brian N.$0174763
712 02$aEnergy Resources Program (Geological Survey)
712 02$aGeological Survey (U.S.),
712 02$aUnited States.$bBureau of Mines.
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910716746403321
996   $aAn assessment of the economic potential of lignite and leonardite resources in the Williston Basin, North Dakota$93501561
997   $aUNINA