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Government Document
Book
4
by Barnes, John Henry, 1946-
Harrisburg, PA : Pennsylvania, Department of Conservation and Natural Resources, Office of Conservation and Engineering Services, Bureau of Topographic and Geologic Survey, 2013
Revised April 2013
Harrisburg, PA : Pennsylvania, Department of Conservation and Natural Resources, Office of Conservation and Engineering Services, Bureau of Topographic and Geologic Survey, 2013
Revised April 2013
Government Document
Book
5
by Barnes, John Henry, 1946-
Harrisburg [Pennsylvania] : Pennsylvania, Bureau of Topographic and Geologic Survey, 1997
2nd ed.
Harrisburg [Pennsylvania] : Pennsylvania, Bureau of Topographic and Geologic Survey, 1997
2nd ed.
Government Document
Book
7
by Barnes, John Henry, 1946-
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey, 1997
Third edition, revised.
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey, 1997
Third edition, revised.
Government Document
Book
8
by Barnes, John Henry, 1946-
Harrisburg [Pa.] : Pennsylvania, Bureau of Topographic and Geologic Survey, 1991
3rd ed.
Harrisburg [Pa.] : Pennsylvania, Bureau of Topographic and Geologic Survey, 1991
3rd ed.
Government Document
Book
9
by Barnes, John Henry, 1946-
Harrisburg, Pa. : Pennsylvania Geological Survey, 2003
1st ed. [2nd printing].
Harrisburg, Pa. : Pennsylvania Geological Survey, 2003
1st ed. [2nd printing].
Government Document
Book
10
by Barnes, John Henry, 1946-
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey, 1997
3rd ed., rev.
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey, 1997
3rd ed., rev.
Government Document
Book
11
by Barnes, John Henry, 1946-
Harrisburg [Pa.] : Pennsylvania, Department of Conservation and Natural Resources, Ofiice of Conservaiton and Engineering Services, Bureau of Topographic and Geologic Survey, 2004
4th edition.
Harrisburg [Pa.] : Pennsylvania, Department of Conservation and Natural Resources, Ofiice of Conservaiton and Engineering Services, Bureau of Topographic and Geologic Survey, 2004
4th edition.
Government Document
Book