Não informado. (1951). Core Arboretum Bulletin. West Virginia University, Department of Biology.
Chicago (17e ed.) BronvermeldingNão informado. Core Arboretum Bulletin. Morgantown, Va: West Virginia University, Department of Biology, 1951.
MLA (8e ed.) BronvermeldingNão informado. Core Arboretum Bulletin. West Virginia University, Department of Biology, 1951.
Let op: Deze citaties zijn niet altijd 100% accuraat.