LEADER 01716nam 2200385Ka 450 001 9910696886503321 005 20080722102850.0 035 $a(CKB)5470000002382013 035 $a(OCoLC)234381631 035 $a(EXLCZ)995470000002382013 100 $a20080722d2002 ua 0 101 0 $aeng 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aEvaluation of explosion-resistant seals, stoppings, and overcast for ventilation control in underground coal mining$b[electronic resource] /$fby Eric S. Weiss, Kenneth L. Cashdollar, and Michael J. Sapko 210 1$aPittsburgh, Pa. :$cU.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Pittsburgh Research Laboratory,$d[2002] 215 $aiii, 48 pages $cdigital, PDF file 225 1 $aReport of investigations ;$v9659 300 $aTitle from title screen (viewed on July 18, 2008). 300 $a"December 2002." 606 $aMine ventilation$xEquipment and supplies 606 $aMine explosions$xPrevention 615 0$aMine ventilation$xEquipment and supplies. 615 0$aMine explosions$xPrevention. 700 $aWeiss$b E. S$g(Eric S.)$01386102 701 $aCashdollar$b Kenneth L$01387560 701 $aSapko$b M. J$01386391 712 02$aPittsburgh Research Laboratory (National Institute for Occupational Safety and Health) 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910696886503321 996 $aEvaluation of explosion-resistant seals, stoppings, and overcast for ventilation control in underground coal mining$93486555 997 $aUNINA