LEADER 01512nam 2200385Ka 450 001 9910696751103321 005 20080714092430.0 035 $a(CKB)5470000002381361 035 $a(OCoLC)233823944 035 $a(EXLCZ)995470000002381361 100 $a20080714d1977 ua 0 101 0 $aeng 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aMethods of determining the orientations of bedrock fracture systems in southwestern Pennsylvania and northern West Virginia$b[electronic resource] /$fB.M. Bench, W.P. Diamond, and C.M. McCulloch 210 1$a[Washington, D.C.?] :$cU.S. Dept. of the Interior, Bureau of Mines,$d[1977] 215 $aii, 35 pages $cdigital, PDF file 225 1 $aBureau of Mines report of investigations ;$v8217 300 $aTitle from title screen (viewed on July 11, 2008). 300 $a"1977. " 606 $aCoal mines and mining$zPennsylvania 606 $aCoal mines and mining$zWest Virginia 615 0$aCoal mines and mining 615 0$aCoal mines and mining 700 $aBench$b B. M$01389498 701 $aDiamond$b W. P$g(William P.)$01389496 701 $aMcCulloch$b C. M$g(Charles M.)$01389497 712 02$aUnited States.$bBureau of Mines. 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910696751103321 996 $aMethods of determining the orientations of bedrock fracture systems in southwestern Pennsylvania and northern West Virginia$93445106 997 $aUNINA