LEADER 01238nam  2200361Ka 450 
001 9910696877103321
005 20080723082252.0
035   $a(CKB)5470000002382108
035   $a(OCoLC)234884355
035   $a(EXLCZ)995470000002382108
100   $a20080723d1986      ua             0
101 0 $aeng
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aComparisons between cross-measure boreholes and surface gob holes$b[electronic resource] /$fby T.W. Goodman and J. Cervik
210  1$a[Pittsburg, Pa.?] :$cU.S. Dept. of the Interior, Bureau of Mines,$d[1986]
215   $a14 pages $cdigital, PDF file
225 1 $aReport of investigations ;$v9013
300   $aTitle from title screen (viewed on July 22, 2008).
606   $aCoalbed methane drainage
606   $aLongwall mining
615  0$aCoalbed methane drainage.
615  0$aLongwall mining.
700   $aGoodman$b Tobias W$01406794
701   $aCervik$b Joseph$01389517
712 02$aUnited States.$bBureau of Mines.
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910696877103321
996   $aComparisons between cross-measure boreholes and surface gob holes$93486552
997   $aUNINA