LEADER 01321nam 2200337Ka 450 001 9910696401903321 005 20080404142204.0 035 $a(CKB)5470000002378827 035 $a(OCoLC)219722989 035 $a(EXLCZ)995470000002378827 100 $a20080404d2003 ua 0 101 0 $aeng 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aMeasuring very low air velocities in underground metal/nonmetal mines$b[electronic resource] 210 1$a[Pittsburgh, PA] :$cU.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health,$d[2003] 215 $a2 unnumbered pages $cdigital, PDF file 225 1 $aTechnology news ;$vno. 501 300 $aTitle from title screen (viewed on Mar. 17, 2008). 300 $a"Milestones in Mining Safety and Health Technology." 300 $a"January 2003." 606 $aMines and mineral resources$zUnited States 615 0$aMines and mineral resources 712 02$aPittsburgh Research Laboratory (National Institute for Occupational Safety and Health) 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910696401903321 996 $aMeasuring very low air velocities in underground metal$93109876 997 $aUNINA