LEADER 01352oas 2200409 450 001 9910715304803321 005 20210316121047.0 035 $a(CKB)5470000002510991 035 $a(OCoLC)1241254030 035 $a(EXLCZ)995470000002510991 100 $a20210312b20032003 ua 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aUnderground mining facts 210 1$a[Pittsburgh, Pa.] :$cNational Institute for Occupational Safety and Health,$d2005. 215 $a1 online resource (1 volume) 225 1 $aDHHS (NIOSH) publication 606 $aMineral industries$zUnited States$xEmployees$vStatistics$vPeriodicals 606 $aMiners$xEmployment$zUnited States$vStatistics$vPeriodicals 606 $aMine accidents$zUnited States$vStatistics$vPeriodicals 606 $aMine safety$zUnited States$vStatistics$vPeriodicals 608 $aStatistics.$2lcgft 615 0$aMineral industries$xEmployees 615 0$aMiners$xEmployment 615 0$aMine accidents 615 0$aMine safety 712 02$aNational Institute for Occupational Safety and Health, 801 0$bGPO 801 1$bGPO 801 2$bGPO 906 $aJOURNAL 912 $a9910715304803321 996 $aUnderground mining facts$93303782 997 $aUNINA