Não informado. (1969). Journal of the American Society for Horticultural Science. American Society for Horticultural Science.
Chicago (17e ed.) BronvermeldingNão informado. Journal of the American Society for Horticultural Science. Alexandria, Va: American Society for Horticultural Science, 1969.
MLA (8e ed.) BronvermeldingNão informado. Journal of the American Society for Horticultural Science. American Society for Horticultural Science, 1969.
Let op: Deze citaties zijn niet altijd 100% accuraat.