Showing 1 - 11 results of 11 for search 'Sigafoos, Robert Sumner, 1920-', query time: 0.15s Refine Results
  1. 1
    Botanical evidence of floods and flood-plain deposition /
    by Sigafoos, Robert Sumner, 1920-
    Published 1964
    Government Document Book
  2. 2
    Botanical evidence of the modern history of Nisqually Glacier, Washington /
    by Sigafoos, Robert Sumner, 1920-
    Published 1961
    Government Document Book
  3. 3
    Vegetation of Northwestern North America as an aid in interpretation of geologic data /
    by Sigafoos, Robert Sumner, 1920-
    Published 1958
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    Government Document eBook
  4. 4
    Botanical evidence of floods and flood-plain deposition /
    by Sigafoos, Robert Sumner, 1920-
    Published 1964
    Get full text
    Government Document eBook
  5. 5
    Frost action and vegetation patterns on Seward Peninsula, Alaska : a study of the geomorphic significance of vegetation patterns as related to frost action at high latitudes and in areas of perennially frozen ground /
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    Government Document eBook
  6. 6
    Recent activity of glaciers of Mount Rainier, Washington /
    Government Document Book
  7. 7
    Botanical evidence of the modern history of Nisqually Glacier, Washington /
    Get full text
    Government Document eBook
  8. 8
    Recent activity of glaciers of Mount Rainier, Washington /
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    Government Document eBook
  9. 9
    The river and the rocks : the geologic story of Great Falls and the Potomac River Gorge /
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    Government Document eBook
  10. 10
    Geomorphology, vegetation, and Patowmack Canal construction problems, Great Falls Park, Potomac River, Virginia : Potomac River Gorge, Virginia, July 13, 1989 /
    by Milton, N. M. (Nancy M.)
    Published 1989
    Other Authors: “...Sigafoos, Robert Sumner, 1920-...”
    Connect to the full text of this electronic book
    Conference Proceeding eBook
  11. 11
    The river and the rocks : the geologic story of Great Falls and the Potomac River Gorge /
    by Reed, John Calvin, Jr., 1930-
    Published 1980
    Other Authors: “...Sigafoos, Robert Sumner, 1920-...”
    Government Document Book
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