01477nam 2200373Ka 450 991069167980332120020314142038.0(CKB)5470000002346583(OCoLC)49316216ocm49316216(OCoLC)995470000002346583(EXLCZ)99547000000234658320020314d1998 ua 0engtxtrdacontentcrdamediacrrdacarrierNew shroud design controls silica dust from surface mine and construction blast hole drills[electronic resource][Cincinnati, Ohio] :[U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health],[1998]DHHS (NIOSH) publication ;no. 98-150"November 1998"--P. [4].Title from title screen.Hazard controlsCoal mines and miningDust controlUnited StatesLungsDust diseasesUnited StatesPreventionCoal mines and miningDust controlLungsDust diseasesPrevention.National Institute for Occupational Safety and Health.GPOGPOBOOK9910691679803321New shroud design controls silica dust from surface mine and construction blast hole drills3111034UNINA