LEADER 01259nam 2200349Ka 450 001 9910696829803321 005 20080728120523.0 035 $a(CKB)5470000002382586 035 $a(OCoLC)236169340 035 $a(EXLCZ)995470000002382586 100 $a20080728d1975 ua 0 101 0 $aeng 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aSelected geologic factors affecting mining of the Pittsburgh coalbed$b[electronic resource] /$fby C.M. McCulloch ... [and others] 210 1$a[Pittsburgh, Pa.?] :$cU.S. Dept. of the Interior, Bureau of Mines,$d[1975] 215 $aiii, 72 pages $cdigital, PDF file 225 1 $aReport of investigations ;$v8093 300 $aTitle from title screen (viewed on July 28, 2008). 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 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 $a9910696829803321 996 $aSelected geologic factors affecting mining of the Pittsburgh coalbed$93497475 997 $aUNINA