LEADER 01194nam  2200325Ka 450 
001 9910696454403321
005 20080307084557.0
035   $a(CKB)5470000002378297
035   $a(OCoLC)213068129
035   $a(EXLCZ)995470000002378297
100   $a20080307d1997      ua             0
101 0 $aeng
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 00$aRoof hazard alert modules$b[electronic resource]
210  1$a[Pittsburgh, PA] :$cU.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health,$d[1997]
215   $a2 unnumbered pages $cdigital, PDF file
225 1 $aTechnology news ;$vno. 455
300   $aTitle from title screen (viewed on Mar. 7, 2008).
300   $a"May 1997."
606   $aMine roof control$zUnited States$xEquipment and supplies
615  0$aMine roof control$xEquipment and supplies.
712 02$aNational Institute for Occupational Safety and Health.
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910696454403321
996   $aRoof hazard alert modules$93164760
997   $aUNINA