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1
Stratigraphic correlation chart of Pennsylvania /
[Harrisburg] : Commonwealth of Pennsylvania, Department of Environmental Resources, Topographic and Geologic Survey, 1983
“...General geology report ;...”

Mapa
2
Stratigraphic correlation chart of Pennsylvania /
Harrisburg, Pa. : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Topographic and Geologic Survey : May be purchased from State Book Store, 1986
Second printing, rev.
“...General geology report ;...”

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Llibre
3
Geological investigations of the Pennsylvania Piedmont.
[Harrisburg] Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geologic Survey, 1964
“...General geology report ;...”

Llibre
4
Glacial border deposits of late Wisconsinan age in northeastern Pennsylvania /
per Crowl, G. H.
Harrisburg : Department of Environmental Resources, Bureau of Topographic and Geologic Survey, 1980
“...General geology report ;...”

Llibre
5
Guide to the Horse Shoe Curve section between Altoona and Gallitzin, central Pennsylvania /
per Swartz, Frank M. (Frank McKim), 1899-1982
Harrisburg : Bureau of Topographic and Geologic Survey, 1965
“...General geology report ;...”

Llibre
6
Glacial border deposits of late Wisconsinan age in northeastern Pennsylvania /
per Crowl, G. H.
Harrisburg : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey : May be purchased from State Book Store, 1980
“...General geology report ;...”

Document de govern Llibre
7
Stratigraphic correlation chart of Pennsylvania /
[Harrisburg] : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1993
3rd print., slightly rev. 1993.
“...General geology report ;...”

Document de govern Mapa
8
Guidebook to the geology of the Pennsylvania turnpike /
per Cleaves, Arthur B. (Arthur Bailey), 1905-
Harrisburg, Pa. : Topographic and Geologic Survey, 1942
“...General geology report ;...”

Llibre
9
Geology of the Pittsburgh area /
Harrisburg [Topographic and Geologic Survey], 1970
“...General geology report ;...”

Llibre
10
A syllabus of Pennsylvania geology and mineral resources /
per Ashley, Geo. H. (George Hall), 1866-
Harrisburg, Pa. : Topographic and Geologic Survey, 1931
“...General geology report ;...”

Llibre
11
Upper Devonian stratigraphy and sedimentary environments in northeastern Pennsylvania.
per Glaeser, J. Douglas
Harrisburg [Topographic and Geologic Survey], 1974
“...General geology report ;...”

Llibre
12
Pleistocene beach ridges of Northwestern Pennsylvania.
per Schooler, Elizabeth E.
Harrisburg [Topographic and Geologic Survey], 1974
“...General geology report ;...”

Llibre
13
Carbonates of the Lower and Middle Ordovician in central Pennsylvania.
per Chafetz, Henry
Harrisburg [Topographic and Geologic Survey], 1969
“...General geology report ;...”

Llibre
14
The Annville, Myerstown and Hershey formations of Pennsylvania /
per Prouty, C. E. (Chilton Eaton), 1914-
[Harrisburg] : Topographic and Geologic Survey, 1959
“...General geology report ;...”

Llibre
15
A lithostratigraphic, petrographic, and chemical investigation of the Lower Middle Ordovician carbonate rocks in central Pennsylvania.
per Rones, Morris, 1922-1965
Harrisburg [Topographic and Geologic Survey], 1969
“...General geology report ;...”

Llibre
16
Guide to the geology of Cornwall, Pennsylvania /
per Gray, Carlyle
[Harrisburg] : Topographic and Geologic Survey, 1961
“...General geology report ;...”

Llibre
17
Upper Devonian marine-nonmarine transition, southern Pennsylvania.
per Walker, Roger G.
Harrisburg [Topographic and Geologic Survey], 1972
“...General geology report ;...”

Llibre
18
Geology and biology of Pennsylvania caves.
Harrisburg [Pennsylvania Topographic and Geologic Survey], 1976
“...General geology report ;...”

Llibre
19
The geology of the Hidden Valley Boy Scout Camp area, Perry County, Pennsylvania.
per Miller, J. T. (John T.), 1906-
Harrisburg [Pennsylvania Topographic and Geologic Survey], 1971
Second edition
“...General geology report ;...”

Llibre
20
Meteorites found in Pennsylvania /
per Stone, Ralph W. (Ralph Walter), 1876-1964
Harrisburg : [Pennsylvania Topographic and Geologic Survey], 1967
Revised.
“...General geology report ;...”

Llibre
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