Não informado. (1969). Journal of the American Society for Horticultural Science. American Society for Horticultural Science.
Chicago-Zitierstil (17. Ausg.)Não informado. Journal of the American Society for Horticultural Science. Alexandria, Va: American Society for Horticultural Science, 1969.
MLA-Zitierstil (8. Ausg.)Não informado. Journal of the American Society for Horticultural Science. American Society for Horticultural Science, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.