LEADER 02090oam  2200589   450 
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005 20181003081932.0
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035   $a(EXLCZ)995470000002483508
100   $a20160708d1953      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aExploratory drilling program of the U. S. Geological Survey for evidences of zinc-lead mineralization in Iowa and Wisconsin, 1950-51 /$fby Allen F. Agnew, Arthur E. Flint and John W. Allingham
210  1$aWashington, D.C. :$cUnited States Department of the Interior, Geological Survey,$d1953.
215   $a1 online resource (37 pages) $cillustrations, maps
225 1 $aGeological Survey circular ;$v231
300   $a"Prepared in cooperation with the Wisconsin Geological and Natural History Survey."
320   $aIncludes bibliographical references (page 11).
606   $aLead ores$zIowa
606   $aLead ores$zWisconsin
606   $aZinc ores$zIowa
606   $aZinc ores$zWisconsin
606   $aLead mines and mining$2fast
606   $aZinc mines and mining$2fast
607   $aIowa$2fast
607   $aWisconsin$2fast
615  0$aLead ores
615  0$aLead ores
615  0$aZinc ores
615  0$aZinc ores
615  7$aLead mines and mining.
615  7$aZinc mines and mining.
700   $aAgnew$b Allen F.$f1918-2012,$01386534
702   $aFlint$b Arthur E.$f1913-
702   $aAllingham$b John D.
712 02$aGeological Survey (U.S.),
712 02$aWisconsin Geological and Natural History Survey.
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bOCLCA
801  2$bGPO
906   $aBOOK
912   $a9910711453303321
996   $aExploratory drilling program of the U. S. Geological Survey for evidences of zinc-lead mineralization in Iowa and Wisconsin, 1950-51$93435523
997   $aUNINA