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  1. 1

    Textbook of dendrology covering the important forest trees of the United States and Canada

    Published 1991
    Book

    Textbook of dendrology covering the important forest trees of the United States and Canada
  2. 2

    Trees; stages 1 and 2 a unit for teachers.

    Published 1973
    Book

    Trees; stages 1 and 2 a unit for teachers.
  3. 3

    The formation of wood in forest tress; the second symposium held under the auspices of the maria Moors Cabot Foundation for Botanical Research, Harvard FOrest, April 1963 by Zimmermann, Martin Huldrych 1926- ed

    Published 1964
    Book

    The formation of wood in forest tress; the second symposium held under the auspices of the maria Moors Cabot Foundation for Botanical Research, Harvard FOrest, April 1963

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