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  1. 1
    Annotated bibliography of Pennsylvania geology. : Supplement to 1959
    by Cramer, Howard Ross, 1925-
    Published 1965

    Book
  2. 2
    Annotated bibliography of Pennsylvania geology to 1949
    by Cramer, Howard Ross, 1925-
    Published 1961

    Book
  3. 3
    State bookstore of Pennsylvania price list

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Serial
  4. 4
    Annotated bibliography of Pennsylvania geology--supplement to 1969
    by Cramer, Howard Ross, 1925-
    Published 1972

    Book
  5. 5
    List of publications and reports issued and in progress
    Published 1917

    Book
  6. 6
    Annotated bibliography of Pennsylvania geology : supplement to 1979 /
    Published 1986

    Book
  7. 7
    Annotated bibliography of Pennsylvania geology--supplement to 1959
    by Cramer, Howard Ross, 1925-
    Published 1965

    Book
  8. 8
    Annotated bibliography of Pennsylvania geology : supplement to 1979 /
    Published 1986

    Book
  9. 9
    List of publications of the Second Geological Survey, 1874-1893
    Published 1893

    Book
  10. 10
    List of publications of the Second Geological Survey, 1874-1893
    Published 1893

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Book
  11. 11
    A list and brief guide to the publications of the Pennsylvania Geological survey, 1874-1891
    Published 1896

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Book
  12. 12
    Annotated bibliography of Pennsylvania geology Supplement to 1959.

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Book
  13. 13
    Annotated bibliography of Pennsylvania geology Supplement to 1969.
    by Cramer, Howard Ross, 1925-
    Published 1972

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Book
  14. 14
    Natural history in America, 1609-1860 : printed works in the collections of the American Philosophical Society, the Historical Society of Pennsylvania, the Library Company of Philadelphia /

    Book
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