LEADER 01889oam  2200553I  450 
001 9910704131403321
005 20151230155433.0
035   $a(CKB)5470000002438353
035   $a(OCoLC)885119606
035   $a(EXLCZ)995470000002438353
100   $a20140802d1956      ua             0
101 0 $aeng
135   $aurn||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aExploratory drilling for evidence of zinc and lead ore in Dubuque County, Iowa /$fby Arthur E. Flint and C. Ervin Brown
210  1$a[Washington, D.C.] :$cUnited States Department of the Interior, Geological Survey,$d1956.
210  2$aWashington :$cUnited States Government Printing Office.
215   $a1 online resource (iii, 471-499 pages) $cillustrations, map, charts
225 1 $aGeological Survey bulletin ;$v1027-K
225 1 $aA contribution to economic geology
300   $aTitle from title screen (viewed July 22, 2014).
300   $a"Prepared in cooperation with the Iowa Geological Survey."
320   $aIncludes index.
606   $aLead ores$zIowa$zDubuque County
606   $aZinc ores$zIowa$zDubuque County
606   $aLead ores$2fast
606   $aZinc ores$2fast
607   $aIowa$zDubuque County$2fast
615  0$aLead ores
615  0$aZinc ores
615  7$aLead ores.
615  7$aZinc ores.
700   $aFlint$b Arthur E.$f1913-$01391201
702   $aBrown$b C. Ervin$g(Clarence Ervin),$f1925-
712 02$aIowa Geological Survey,
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
801  2$bOCLCO
801  2$bGPO
906   $aBOOK
912   $a9910704131403321
996   $aExploratory drilling for evidence of zinc and lead ore in Dubuque County, Iowa$93444768
997   $aUNINA