01335nam 2200385 a 450 991070071480332120110725121751.0(CKB)5470000002411863(OCoLC)742361512(EXLCZ)99547000000241186320110725d2008 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierUse of single-boom roof bolting machines[electronic resource][Arlington, Va.] :[U.S. Dept. of Labor, Mine Safety and Health Administration],[2008]1 online resource (4 pages)Program information bulletin ;no. P08-13Title from title screen (viewed on July 25, 2011)."Issue date: June 25, 2008."Mine roof boltingEquipment and suppliesMine roof boltingSafety measuresMine safetyUnited StatesMine roof boltingEquipment and supplies.Mine roof boltingSafety measures.Mine safetyUnited States.Mine Safety and Health Administration.GPOGPOBOOK9910700714803321Use of single-boom roof bolting machines3208583UNINA