01899oam 2200553I 450 991070687410332120180627140430.0(CKB)5470000002458724(OCoLC)827195278(OCoLC)1028563744(OCoLC)1028656268(OCoLC)1030292055(OCoLC)995470000002458724(EXLCZ)99547000000245872420130209d1946 ua 0engurbn||||||abptxtrdacontentcrdamediacrrdacarrierFlood-prevention projects at Pennsylvania anthracite mines a preliminary study /by S.H. Ash and James Westfield[Washington, D.C.] :United States Department of the Interior, Bureau of Mines,1946.1 online resource (various pagings) illustrationsReport of investigations / United States Department of the Interior, Bureau of Mines ;R.I. 3868"March 1946."Includes bibliographical references (page 25).Flood-prevention projects at Pennsylvania anthracite mines Mine drainagePennsylvaniaAnthracite coalPennsylvaniaAnthracite coalfastMine drainagefastPennsylvaniafastMine drainageAnthracite coalAnthracite coal.Mine drainage.Ash S. H(Simon Harry),1889-1415273Westfield JamesUnited States.Bureau of Mines,OCLCEOCLCEOCLCOOCLCQOCLCFOCLCOOCLCQGPOMERUCBOOK9910706874103321Flood-prevention projects at Pennsylvania anthracite mines3549394UNINA