LEADER 01265nam 2200361Ka 450 001 9910696727703321 005 20080716085400.0 035 $a(CKB)5470000002381597 035 $a(OCoLC)234073208 035 $a(EXLCZ)995470000002381597 100 $a20080716d1981 ua 0 101 0 $aeng 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aEvaluation of the seismic system for locating trapped miners$b[electronic resource] /$fby John Durkin and Roy J. Greenfield 210 1$a[Washington, D.C..?] :$cU.S. Dept. of the Interior, Bureau of Mines,$d[1981] 215 $aiii, 55 pages $cdigital, PDF file 225 1 $aReport of investigations ;$v8567 300 $aTitle from title screen (viewed on July 14, 2008). 606 $aSeismometers 606 $aMine rescue work$xEquipment and supplies 615 0$aSeismometers. 615 0$aMine rescue work$xEquipment and supplies. 700 $aDurkin$b John$01391019 701 $aGreenfield$b Roy$01400631 712 02$aUnited States.$bBureau of Mines. 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910696727703321 996 $aEvaluation of the seismic system for locating trapped miners$93467896 997 $aUNINA