5 results Refine Results
  1. 1
    by Twight, Peter A.
    Published 1973
    Subjects “...Forest conservation Northwest, Pacific....”
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    Ecological forestry for the Douglas Fir region.
  2. 2
    by Heilman, Paul E., 1931-
    Published 1981
    Subjects “...Forest soils Northwest, Pacific....”
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    Forest soils of the Douglas-fir region /
  3. 3
    Published 1986
    Subjects “...Douglas fir Northwest, Pacific Congresses....”
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    Douglas-fir : stand management for the future /
  4. 4
    Published 1984
    Subjects “...Douglas fir Northwest, Pacific Diseases and pests Congresses....”
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    Silvicultural management strategies for pests of the interior Douglas-fir and Grand fir forest types : proceedings of a symposium held, February 14-16, 1984, Spokane, Washington /
  5. 5
    by King, James E.
    Published 1966
    Subjects “...Forest site quality Northwest, Pacific....”
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    Site index curves for Douglas-fir in the Pacific Northwest /

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