01895oam 2200601 450 991070540310332120170428092259.0(CKB)5470000002451361(OCoLC)784652675(OCoLC)754643441(EXLCZ)99547000000245136120120408d1998 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierEngineering geology applied to the design and operation of underground coal mines /by C. Richard DunrudWashington :United States Government Printing Office,1998.1 online resource (vi, 134 pages) illustrationsU.S. Geological Survey bulletin ;2147Includes bibliographical references (pages 128-134).Coal mines and miningEngineering geologyCoalGeologyGround control (Mining)CoalGeologyfastCoal mines and miningfastEngineering geologyfastGround control (Mining)fastCoal mines and mining.Engineering geology.CoalGeology.Ground control (Mining)CoalGeology.Coal mines and mining.Engineering geology.Ground control (Mining)622/.334Dunrud C. Richard1385965Geological Survey (U.S.),OCLCEOCLCEOCLCQOCLCOOCLCFOCLCQTFWOCLCQGPOBOOK9910705403103321Engineering geology applied to the design and operation of underground coal mines3538096UNINA