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1by Moebs, Noel N.Subjects: “...Coal Geology Pennsylvania....”
Published 1981
Government Document Book -
2by Koppe, Edwin F.Subjects: “...Coal Geology Pennsylvania Houtzdale Region....”
Published 1967
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3Geologic processes affecting the quality of the Upper Freeport coal bed, west-central Pennsylvania /Published 1986Subjects: “...Coal Geology Pennsylvania Indiana County....”
Government Document Microform Book -
4by Iannacchione, Anthony T.Subjects: “...Coal Geology Pennsylvania Cambria County....”
Published 1979
Government Document Book -
5Published 1985Subjects: “...Coal Geology Pennsylvania....”
Government Document Book -
6by Elder, C. H. (Curtis H.)Subjects: “...Coal Geology Pennsylvania Bruceton Region....”
Published 1977
Government Document Book -
7by Puglio, D. G. (Donald G.)Subjects: “...Coal Geology Pennsylvania....”
Published 1979
Government Document Book -
8by Steidl, Peter F.Subjects: “...Coal Geology Pennsylvania Fayette County....”
Published 1977
Government Document Book -
9by Wood, Gordon H. (Gordon Harry), 1919-Subjects: “...Coal Geology Pennsylvania Dauphin County Maps....”
Published 1968
Government Document Map -
10by Dodge, Clifford H.Subjects: “...Coal Geology Pennsylvania Butler County....”
Published 1985
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11Published 1985Subjects: “...Coal Geology Pennsylvania Allegheny County....”
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12by Moebs, Noel N.Subjects: “...Coal Geology Pennsylvania Pittsburgh....”
Published 1977
Government Document Book -
13by Eggleston, Jane R.Subjects: “...Coal Geology Pennsylvania....”
Published 1981
Conference Proceeding Book -
14by Skema, V. W. (Viktoras W.)Subjects: “...Coal Geology Pennsylvania Greene County....”
Published 1982
Book -
15by Shaulis, James R.Subjects: “...Coal Geology Pennsylvania Fayette County....”
Published 1985
Book -
16by Dodge, Clifford H.Subjects: “...Coal Geology Pennsylvania Greene County....”
Published 1984
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17by Skema, Viktoras W.Subjects: “...Coal Geology Pennsylvania Westmoreland County....”
Published 1988
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18by Berryhill, Henry L., Jr. (Henry Lee), 1921-2013, Schweinfurth, Stanley P., Kent, Bion H. (Bion Huntley), 1925-Subjects: “...Coal Geology Pennsylvania Washington Region....”
Published 1971
Government Document Book -
19by Kertis, Carla A.Subjects: “...Coal Geology Pennsylvania Indiana County....”
Published 1985
Government Document Book -
20by Kertis, Carla A.Subjects: “...Coal Geology Pennsylvania Indiana County....”
Published 1985
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