LEADER 01293nam 2200349Ka 450 001 9910696728003321 005 20080716084742.0 035 $a(CKB)5470000002381594 035 $a(OCoLC)234073034 035 $a(EXLCZ)995470000002381594 100 $a20080716d1982 ua 0 101 0 $aeng 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aElectromagnetic surface fields due to a magnetic dipole buried in a three-layered earth$b[electronic resource] /$fby Steven M. Shope 210 1$a[Washington, D.C.?] :$cU.S. Dept. of the Interior, Bureau of Mines,$d[1982] 215 $a22 pages $cdigital, PDF file 225 1 $aReport of investigations ;$v8702 300 $aTitle from title screen (viewed on July 15, 2008). 606 $aMine communication systems 606 $aMine rescue work$xEquipment and supplies 615 0$aMine communication systems. 615 0$aMine rescue work$xEquipment and supplies. 700 $aShope$b S. M$g(Steven M.)$01418790 712 02$aUnited States.$bBureau of Mines. 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910696728003321 996 $aElectromagnetic surface fields due to a magnetic dipole buried in a three-layered earth$93531213 997 $aUNINA