Showing 1 - 4 results of 4 for search 'Ringius, Gordon S., 1949-', query time: 0.13s Refine Results
  1. 1
    Indicator plant species in Canadian forests /
    by Ringius, Gordon S., 1949-
    Published 1997
    Government Document Book
  2. 2
    The goldenrods of Ontario : Solidago L. and Euthamia Nutt /
    by Semple, John C.
    Published 1983
    Other Authors: “...Ringius, Gordon S., 1949-...”
    Book
  3. 3
    The goldenrods of Ontario : Solidago L. and Euthamia Nutt /
    by Semple, John C.
    Published 1992
    Other Authors: “...Ringius, Gordon S., 1949-...”
    Book
  4. 4
    The goldenrods of Ontario : Solidago L. and Euthamia Nutt /
    by Semple, John C.
    Published 1999
    Other Authors: “...Ringius, Gordon S., 1949-...”
    Book
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