LEADER 01389nam  2200373Ka 450 
001 9910696886403321
005 20080722103249.0
035   $a(CKB)5470000002382014
035   $a(OCoLC)234381956
035   $a(EXLCZ)995470000002382014
100   $a20080722d1994      ua             0
101 0 $aeng
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aEvaluation of alternative placement of longwall gob gas ventholes for optimum performance$b[electronic resource] /$fby William P. Diamond, Paul W. Jeran, and Michael A. Trevits
210  1$a[Washington, D.C.?] :$cU.S. Dept. of the Interior, Bureau of Mines,$d[1994]
215   $a14 pages $cdigital, PDF file
225 1 $aReport of investigations ;$v9500
300   $aTitle from title screen (viewed on July 18, 2008).
606   $aMine ventilation
606   $aLongwall mining$xSafety measures
615  0$aMine ventilation.
615  0$aLongwall mining$xSafety measures.
700   $aDiamond$b W. P$g(William P.)$01389496
701   $aJeran$b P. W$01408214
701   $aTrevits$b Michael A$01408215
712 02$aUnited States.$bBureau of Mines.
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910696886403321
996   $aEvaluation of alternative placement of longwall gob gas ventholes for optimum performance$93491551
997   $aUNINA