01445nam 2200397Ka 450 991069684890332120191202144722.0(CKB)5470000002382393(OCoLC)236075452(EXLCZ)99547000000238239320080725d1981 ua 0engtxtrdacontentcrdamediacrrdacarrierMethane drainage study using an underground pipeline, Marianna mine 58[electronic resource] /by L.J. Prosser, Jr., G.L. Finfinger, and J. Cervik[Pittsburgh, Pa.?] :U.S. Dept. of the Interior, Bureau of Mines,[1981]xii, 29 pages digital, PDF fileReport of investigations ;8577Title from title screen (viewed on July 24, 2008).Coal mines and miningSafety measuresMine ventilationCoalbed methane drainageCoal mines and miningSafety measures.Mine ventilation.Coalbed methane drainage.Prosser L. J(Leonard J.)1414846Finfinger Gerald L1396023Cervik Joseph1389517United States.Bureau of Mines.GPOGPOBOOK9910696848903321Methane drainage study using an underground pipeline, Marianna mine 583531240UNINA