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1
by Lytle, William S.
Harrisburg, Pa : Pennsylvania, Bureau of Topographic and Geological Survey, 1971
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg, Pa : Pennsylvania, Bureau of Topographic and Geological Survey, 1971
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Book
2
by Lytle, William S.
Harrisburg, 1971
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg, 1971
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Book
3
by Kelley, Dana R.
Harrisburg, [publisher not identified], 1967
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg, [publisher not identified], 1967
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Book
4
5
by Kelley, Dana R.
Harrisburg : Commonwealth of Pennsylvania, State Planning Board, Bureau of Topographic and Geologic Survey, 1970
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg : Commonwealth of Pennsylvania, State Planning Board, Bureau of Topographic and Geologic Survey, 1970
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Manuscript
Book
6
by Kelley, Dana R.
Harrisburg : Commonwealth of Pennsylvania, State Planning Board, Bureau of Topographic and Geologic Survey, 1970
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg : Commonwealth of Pennsylvania, State Planning Board, Bureau of Topographic and Geologic Survey, 1970
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Book
7
8
by Kelley, Dana R.
Harrisburg : Commonwealth of Pennsylvania, State Planning Board, Bureau of Topographic and Geologic Survey, 1969
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg : Commonwealth of Pennsylvania, State Planning Board, Bureau of Topographic and Geologic Survey, 1969
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Book
9
by Kelley, Dana R.
Harrisburg, [publisher not identified], 1969
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg, [publisher not identified], 1969
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Book
10
by Lytle, William S.
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1966
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1966
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Government Document
Book
11
by Kelley, Dana R.
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1969
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1969
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Government Document
Book
12
by Kelley, Dana R.
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1970
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1970
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Government Document
Book
13
by Lytle, William S., Heyman, Louis, Kelley, Dana R.
Harrisburg, Pa : Pennsylvania, Bureau of Topographic and Geological Survey, 1971
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg, Pa : Pennsylvania, Bureau of Topographic and Geological Survey, 1971
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Government Document
Book
14
by Kelley, Dana R.
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1969
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1969
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Government Document
Book
15
by Kelley, Dana R.
Harrisburg, 1969
“...Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) ;...”Harrisburg, 1969
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Book