LEADER 01233nam  2200349I  450 
001 9910706929003321
005 20180423154438.0
035   $a(CKB)5470000002460190
035   $a(OCoLC)1032007878
035   $a(EXLCZ)995470000002460190
100   $a20180423d1951      ua             0
101 0 $aeng
135   $aur|||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aMagnetic base stations in Lake Superior iron districts /$fby Gordon D. Bath
210  1$a[Washington, D.C.] :$cU.S. Department of the Interior, Bureau of Mines,$d1951.
215   $a1 online resource (58 unnumbered pages) $cillustrations, maps
225 1 $aReport of investigations ;$v4804
300   $aAt head of title: United States Department of the Interior, Bureau of Mines.
320   $aIncludes bibliographical references.
606   $aProspecting$xGeophysical methods
615  0$aProspecting$xGeophysical methods.
700   $aBath$b G. D.$01386774
712 02$aUnited States.$bBureau of Mines,
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910706929003321
996   $aMagnetic base stations in Lake Superior iron districts$93493907
997   $aUNINA