Suggested Topics within your search.
Suggested Topics within your search.
1
by Lytle, William S.
Harrisburg : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1976
Harrisburg : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1976
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Book
2
3
by Greer, John R.
1986
1986
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Thesis
Book
4
by Kobus, Ken
Upper Darby, PA (P.O. Box 389, Upper Darby 19082) : Pennsylvania Railroad Technical and Historical Society, 1996
Upper Darby, PA (P.O. Box 389, Upper Darby 19082) : Pennsylvania Railroad Technical and Historical Society, 1996
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Book
5
by Kovacs, Paul J.
1985
1985
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Thesis
Book
6
by Kobus, Ken
Upper Darby, Pa. : Pennsylvania Railroad Technical and Historical Society, 2007
Upper Darby, Pa. : Pennsylvania Railroad Technical and Historical Society, 2007
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Book
7
8
Bethel Park, Pa. : Crowder Press, 1978
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Book
9
by Ingram, David K.
[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, 1987
[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, 1987
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Government Document
Book
10
by Kobus, Ken
Upper Darby, PA (P.O. Box 389, Upper Darby 19082) : Pennsylvania Railroad Technical and Historical Society, 1997
Upper Darby, PA (P.O. Box 389, Upper Darby 19082) : Pennsylvania Railroad Technical and Historical Society, 1997
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Book
11
by Roth, Paul, (Photographer)
[Pittsburgh, Pennsylvania?] : [Paul Roth?], 2008
[Pittsburgh, Pennsylvania?] : [Paul Roth?], 2008
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Book
12
by Fulton, John W.
Reston, Va. : Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services, 2004
Reston, Va. : Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services, 2004
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Government Document
Book
13
by Eavenson, Howard N. (Howard Nicholas), 1873-1953
New York, N.Y. : The American Institute of Mining and Metallurgical Engineers, 1938
New York, N.Y. : The American Institute of Mining and Metallurgical Engineers, 1938
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Book
14
15
by Ingram, David K.
[Pittsburgh, Pa.] : U.S. Dept. of the Interior, Bureau of Mines, 1987
[Pittsburgh, Pa.] : U.S. Dept. of the Interior, Bureau of Mines, 1987
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Book
16
by O'Neill, Bernard J., 1920-
Harrisburg : Pennsylvania Geological Survey, 1974
Harrisburg : Pennsylvania Geological Survey, 1974
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Map
17
18
by Lytle, William S.
Harrisburg : Pennsylvania Geological Survey, 1976
Harrisburg : Pennsylvania Geological Survey, 1976
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Book
19
by O'Neill, Bernard J., 1920-
Harrisburg : Pennsylvania Geological Survey, 1974
Harrisburg : Pennsylvania Geological Survey, 1974
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Book
20
by O'Neill, Bernard J., 1920-
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1974
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1974
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Government Document
Book