Não informado. (1951). Core Arboretum Bulletin. West Virginia University, Department of Biology.
Chicago-viite (17. p.)Não informado. Core Arboretum Bulletin. Morgantown, Va: West Virginia University, Department of Biology, 1951.
MLA-viite (8. p.)Não informado. Core Arboretum Bulletin. West Virginia University, Department of Biology, 1951.
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