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1
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
2
Guidebook for the ... annual Field Conference of Pennsylvania Geologists.

Conference Proceeding Journal
3
To Beijing and beyond : Pittsburgh and the United Nations Fourth World Conference on Women /
Pittsburgh : University of Pittsburgh Press, 1998

Conference Proceeding Book
4
Guidebook : I. C. White Memorial Symposium Field Trip, September 27-29, 1972. Thomas Arkle, Jr., Field Trip Director.
Morgantown : West Virginia Geological Survey, 1972

Conference Proceeding Book
5
Paleosols, paleoclimate, and paleoatmospheric CO₂ : Paleozoic paleosols of central Pennsylvania /
[Knoxville : University of Tennessee, 1993

Conference Proceeding Book
6
Some tectonic and structural problem of the Appalachian piedmont along the Susquehanna River /
Lancaster, Penn. : Dept. of Geology, Franklin and Marshall College, 1960

Conference Proceeding Book
8
Voluntary preservation of open space : proceedings, Owen J. Roberts High School, Saturday, March 9, 1974.
[Pottstown, Pa.]: [French and Pickering Creeks Conservation Trust], 1974

Conference Proceeding Book
9
Geology of the Wyoming-Lackawanna Valley and its mountain rim, northeastern Pennsylvania : October 2-4, 1997 : hosts, PA Geological Survey [and others] /
Harrisburg, PA : Field Conference of Pennsylvania Geologists, 1997

Conference Proceeding Book
10
Geology of the Middle Ordovician Martinsburg Formation and related rocks in Pennsylvania : 47th annual field conference of Pennsylvania Geologists, October 1 and 2, 1982 New Cumberland, Pa. /
Harrisburg, PA : Field Conference of Pennsylvania Geologists, c/o Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1982

Conference Proceeding Book
11
Geology of the piedmont of southeastern Pennsylvania : guidebook for the 39th Annual Field Conference of Pennsylvania Geologists, October 4-5, 1974.
[Harrisburg, Pa. : The Conference] : distributed by Bureau of Topographic and Geologic Survey, Dept. of Environmental Resources, 1974

Conference Proceeding Book
13
Devonian shales in south-central Pennsylvania and Maryland /
by Dennison, John Manley, 1934-
[S.l. : Harrisburgh, Pa. : s.n.] ; distributed by: Field Conference of Pennsylvania Geologists, 1979

Conference Proceeding Book
14
Land use and abuse, the Allegheny County problem : guidebook for the 45th annual field conference of Pennsylvania geologists /
Harrisburg, Pa. : Field Conference of Pennsylvania Geologists, Department of Environmental Resources, Bureau of Topographic and Geologic Survey, 1980

Conference Proceeding Book
15
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
16
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
17
Stratigraphy, sedimentology, and structure of Silurian and Devonian rocks along the Allegheny Front in Bedford County, Pennsylvania, Allegheny County, Maryland, and Mineral and Grant Counties, West Virginia.
Harrisburg, Pa., Bureau of Topographic and Geologic Survey, 1972

Conference Proceeding Book
18
Alleghanian sequential deformation on the sw lqimb of the Pennsylvania salient in Fulton and Franklin Counties, south-central Pennsylvania ; 61th annual Field Conference of Pennsylvania Geologists, October 3,4,5, 1996/
Harrisburg, PA : Field Conference of Pennsylvania Geologists, Inc., 1996

Conference Proceeding Book
19
Applied geology in the Lock Haven and Williamsport Region, Clinton and Lycoming Counties, Northcentral Pennsylvania : 60th annual Field Conference of Pennsylvania Geologists, October 5,6,7, 1995 /
Harrisburg, PA : Field Conference of Pennsylvania Geologists, Inc., 1995

Conference Proceeding Book
20
Geology of the Southern Somerset County Region, Southwestern Pennsylvania /
Harrisburg, Pa. : Field Conference of Pennsylvania Geologists, 1993

Conference Proceeding Book
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