Showing 1 - 2 results of 2 for search 'Sprackling, John A.', query time: 0.00s Refine Results
  1. 1
    Douglas-fir in Eastern Nebraska : a provenance study

    Douglas-fir in Eastern Nebraska : a provenance study by Read, Ralph A.

    Published 1976
    Other Authors: “…Sprackling, John A.…”
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  2. 2
    Red pine provenance study in eastern Nebraska

    Red pine provenance study in eastern Nebraska by Read, Ralph A.

    Published 1975
    Other Authors: “…Sprackling, John A.…”
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