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035   $a(OCoLC)886559795
035   $a(EXLCZ)995470000002437454
100   $a20140812d1986      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aCoal geology and coal, oil, and gas resources of the Erie and Frederick Quadrangles, Boulder and Weld Counties, Colorado /$fby Frank D. Spencer
210  1$a[Reston, Va.] :$cDepartment of the Interior, U.S. Geological Survey,$d1986.
210  2$a[Washington, D.C.] :$cUnited States Government Printing Office.
215   $a1 online resource (xviii, 458 pages, 7 pages of plates) $cillustrations (some color), color maps
225 1 $aU.S. Geological Survey bulletin ;$v1619
300   $aTitle from title screen (viewed Aug. 11, 2014).
300   $aU.S. G.P.O. sales statement incorrect in publication.
320   $aIncludes bibliographical references.
606   $aCoal$zColorado$zBoulder County
606   $aCoal$zColorado$zWeld County
606   $aPetroleum$zColorado$zBoulder County
606   $aPetroleum$zColorado$zWeld County
606   $aNatural gas$zColorado$zBoulder County
606   $aNatural gas$zColorado$zWeld County
606   $aCoal$2fast
606   $aNatural gas$2fast
606   $aPetroleum$2fast
607   $aColorado$zBoulder County$2fast
607   $aColorado$zWeld County$2fast
615  0$aCoal
615  0$aCoal
615  0$aPetroleum
615  0$aPetroleum
615  0$aNatural gas
615  0$aNatural gas
615  7$aCoal.
615  7$aNatural gas.
615  7$aPetroleum.
700   $aSpencer$b Frank Darwyn$f1904-$01403779
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
906   $aBOOK
912   $a9910704020403321
996   $aCoal geology and coal, oil, and gas resources of the Erie and Frederick Quadrangles, Boulder and Weld Counties, Colorado$93519510
997   $aUNINA