Michael Dirr

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}} Michael A. Dirr is an American horticulturist and a professor of horticulture at the University of Georgia. He is an expert on woody plants. Provided by Wikipedia
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  1. by Dirr, Michael
    Published 2004
    Table of contents
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  2. Viburnums
    flowering shrubs for every season
    Book
    by Dirr, Michael
    Published 2007
    Table of contents only
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