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Author
Pennsylvania. Bureau of Topographic and Geologic Survey
Published
Harrisburg, [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, [1974]
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Willard, Bradford, b. 1894
Published
[Harrisburg?] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey, 1960.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Wagner, Walter Richard, 1928-1974
Published
Harrisburg, Pa. : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey, 1958.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Geological Survey of Pennsylvania
Published
[Harrisburg] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Typographic and Geologic Survey, 1936.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Stose, George Willis, 1869-1960
Published
Washington : U.S. Govt. Print. Off., 1932.
Online
Location
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Format
Books / Online
Author
Johnson, Meredith E., 1897-
Published
[Harrisburg, Pa.?] : Commonwealth of Pennsylvania, Department of Internal Affairs, Bureau of Topographic and Geological Survey ; 1922.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Patton, LeRoy Thompson, 1880-
Published
1916.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Pennsylvania. Topographic and Geological Survey Commission
Published
Harrisburg, Pa. : W. S. Ray, state printer, 1914.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Geological Survey of Pennsylvania
Published
[Harrisburg?], 1891.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Lesley, J. P. (J. Peter), 1819-1903
Published
Harrisburg : Pub. by the Board of commissioners for the Second geological survey, 1885.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Ashburner, Charles A. (Charles Albert), 1854-1889
Published
Harrisburg : Pub. by the Board of Commissioners for the Second Geological Survey, 1885.
Online
Location
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Format
Books / Online
Author
White, I. C. (Israel Charles), 1848-1927
Published
Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1883.
Online
Location
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Format
Books / Online
Author
White, I. C. (Israel Charles), 1848-1927
Published
Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1882.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Frazer, Persifor, 1844-1909
Published
Lille, Imprimerie Six-Horemans, 1882.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Chance, H. M. (Henry Martyn), 1856-1937
Published
Harrisburg, [Pa.] : Pub. by the Board of Commissioners for the Second Geological Survey, 1879.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Dewees, John H.
Published
Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1878.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Geological Survey of Pennsylvania
Published
Harrisburg, 1836-42.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Pennsylvania. Bureau of Topographic and Geologic Survey
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online