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1
Geology of Tioga and Bradford Counties, Pennsylvania.
Harrisburg : Bureau of Topographic and Geologic Survey, 1981

Conference Proceeding Book
2
Central Pennsylvania geology revisited. /
Harrisburg : Bureau of Topographic and Geologic Survey, 1987; 1985

Conference Proceeding Book
3
Stratigraphy of the Pennsylvanian and Permian rocks of Washington, Mercer, and Lawrence Counties, Pa. /
Harrisburg : Bureau of Topographic and Geologic Survey, 1965

Conference Proceeding Book
4
Selected geology of Bedford and Huntingdon counties /
Harrisburg : Bureau of Topographic and Geologic Survey, 1986

Conference Proceeding Book
5
Geology of an accreted terrane : the Eastern Hamburg klippe and surrounding rocks, Eastern Pennsylvania /
Harrisburg : Bureau of Topographic and Geologic Survey, 1984

Conference Proceeding Book
6
Comparative tectonics and stratigraphy of the Cumberland and Lebanon valleys,
by MacLachlan, David B.
Harrisburg, Pa., Bureau of Topographic and Geologic Survey, Dept. of Internal Affairs, 1966

Conference Proceeding Book
7
Geology in the region of the Delaware to Lehigh water gaps : guidebook for the 32nd annual Field Conference of Pennsylvania Geologists, September 29 and 30, 1967 [East Stroudsburg, Pa.] /
by Epstein, Jack Burton, 1935-
Harrisburg, Pa. : Bureau of Topographic and Geologic Survey, Dept. of Environmental Resources, 1967

Conference Proceeding Book
8
Guidebook for the 54th Annual Field Conference of Pennsylvania Geologists : geology in the Laurel Highlands, Southwestern Pennsylvania /
Harrisburg, PA : Distributed by Field Conference of Pennsylvania Geologists c/o Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1989

Conference Proceeding Book
9
The Pocono Formation in northeastern Pennsylvania; guidebook for the 34th Annual Field Conference of Pennsylvania Geologists, Oct. 3-4, 1969.
by Sevon, William D.
Harrisburg, Pa., Bureau of Topographical and Geologic Survey, Dept. of Environmental Resources, 1969

Conference Proceeding Book
10
Pleistocene and Holocene geology of a dynamic coast : guidebook for the 52nd Annual Field Conference of Pennsylvania Geologists, October 1-3, 1987, Mercyhurst College, Pennsylvania Geological Survey /
Harrisburg, PA : Bureau of Topographic and Geologic Survey, 1987

Conference Proceeding Book
11
Structure and Silurian-Devonian stratigraphy of the Valley and Ridge Province, Central Pennsylvania : guidebook for the 38th annual field conference of Pennsylvania geologists, October 5-6, 1973 /
Harrisburg, Pa. : Distributed by Bureau of Topographic and Geologic Survey, Dept. of Environmental Resources, 1973

Conference Proceeding Book
12
New interpretations of eastern Piedmont geology of Maryland; or, Granite and gabbro or graywacke and Greenstone?
Harrisburg, Pa., Baltimore, Bureau of Topographic and Geologic Survey; Maryland Geological Survey, 1970

Conference Proceeding Book
13
Upper Devonian sedimentation in Susquehanna County /
Harrisburg, Pa. : Bureau of Topographic and Geologic Survey, 1971

Conference Proceeding Book
14
The geology of mineral deposits in south-central Pennsylvania.
Harrisburg, Pa. : Bureau of Topographic and Geologic Survey, 1968

Conference Proceeding Book
15
Proceedings.
Harrisburg [Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey] 1970

Conference Proceeding Book
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