01216nam 2200361Ka 450 991069684550332120231024224337.0(CKB)5470000002382427(OCoLC)236079908(EXLCZ)99547000000238242720080725d1972 ua 0engtxtrdacontentcrdamediacrrdacarrierMethane emission in coal mines[electronic resource] effects of oil and gas wells /by M.G. Zabetakis ... [and others][Pittsburgh, Pa.?] :U.S. Dept. of the Interior, Bureau of Mines,[1972]9 pages digital, PDF fileReport of investigations ;7658Title from title screen (viewed on July 23, 2008).Methane emission in coal minesMine explosionsCoal mine accidentsMine explosions.Coal mine accidents.Zabetakis Michael G.1924-2005.1431079United States.Bureau of Mines.GPOGPOBOOK9910696845503321Methane emission in coal mines3572827UNINA