01431nam 2200361Ka 450 991069671690332120080717074915.0(CKB)5470000002381706(OCoLC)234172610(EXLCZ)99547000000238170620080717d2006 ua 0engtxtrdacontentcrdamediacrrdacarrierLower respirable dust and noise exposure with an open structure design[electronic resource] /Andrew B. Cecala ... [and others]Pittsburg, PA :Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Pittsburgh Research Laboratory,[2006]19 pages digital, PDF fileReport of investigations ;9670Title from title screen (viewed on July 16, 2008)."November 2006."Ore-dressingMineral industriesSafety measuresOre-dressing.Mineral industriesSafety measures.Cecala Andrew B1391025Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)GPOGPOBOOK9910696716903321Lower respirable dust and noise exposure with an open structure design3517057UNINA