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1
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2by Markowski, Antonette K., 1956-“...Bureau of Topographic and Geologic Survey,...”
Published 2001
Government Document Book -
3“...Pennsylvania, Bureau of Topographic and Geologic Survey,...”
Internet Archive, State Library of Pennsylvania
Government Document Book -
4by Geyer, Alan R.“...Pennsylvania Bureau of Topographic and Geologic Survey,...”
Published 1982
Book -
5by Barnes, John Henry, 1946-“...Pennsylvania, Bureau of Topographic and Geologic Survey,...”
Published 1991
Government Document Book -
6by Newport, Thomas Gwyn, 1922-“...[Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey],...”
Published 1973
Book -
7by Geyer, Alan R.“...Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey,...”
Published 1972
Book -
8by Newport, Thomas Gwyn, 1922-“...[Topographic and Geologic Survey; may be purchased from Bureau of Publications],...”
Published 1971
Book -
9Published 1982“...Pennsylvania Department of Environmental Resources, Bureau of Topographic and Geologic Survey,...”
Map -
10by Wiswall, C. Gil“...Pennsylvania, Office of Parks and Forestry, Bureau of Topographic and Geologic Survey,...”
Published 1993
Internet Archive, State Library of Pennsylvania
Government Document Book -
11by Poth, Charles W.“...Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic...”
Published 1973
Book -
12by Lloyd, Orville B.“...Commonwealth of Pennsylvania, Department of Environmental Resources, Bureau of Topographic...”
Published 1977
Book -
13Published 1977“...Commonwealth of Pennsylvania, Department of Environmental Resources, Bureau of Topographic...”
Book -
14Published 1978“...Commonwealth of Pennsylvania, Department of Environmental Resources, Bureau of Topographic...”
Book -
15Published 1980“...Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic...”
Map -
16Published 1993“...Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic...”
Map -
17Published 2000“...Commonwealth of Pa., Dept. of Conservation and Natural Resources, Bureau of Topographic...”
Map -
18Published 2000“...Commonwealth of Pa., Dept. of Conservation and Natural Resources, Bureau of Topographic...”
Map -
19by Sevon, William D.“...Commonwealth of Pa., Dept. of Conservation and Natural Resources, Bureau of Topographic...”
Published 2000
Map -
20Published 2000“...Commonwealth of Pa., Dept. of Conservation and Natural Resources, Bureau of Topographic...”
Map