01161nam 2200325Ka 450 991069686270332120080724080119.0(CKB)5470000002382254(OCoLC)235941313(EXLCZ)99547000000238225420080724d1988 ua 0engtxtrdacontentcrdamediacrrdacarrierGeologic factors influencing the gas content of coalbeds in southwestern Pennsylvania[electronic resource] /by James P. Ulery[Pittsburgh, Pa?] :U.S. Dept. of the Interior, Bureau of Mines,[1988]26 pages digital, PDF fileReport of investigations ;9195Title from title screen (viewed on July 23, 2008).Coalbed methanePennsylvaniaCoalbed methaneUlery J. P(James P.)1389795United States.Bureau of Mines.GPOGPOBOOK9910696862703321Geologic factors influencing the gas content of coalbeds in southwestern Pennsylvania3446127UNINA