Showing 1 - 2 results of 2 for search 'Witter, John A.', query time: 0.02s Refine Results
  1. 1
    Rating spruce-fir stands for spruce budworm damage in eastern North America /

    Rating spruce-fir stands for spruce budworm damage in eastern North America / by Witter, John A.

    Published 1985
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  2. 2
    A survey of soil invertebrates in two aspen forests in northern Minnesota /

    A survey of soil invertebrates in two aspen forests in northern Minnesota / by Wagner, T. L.

    Published 1977
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