Não informado. (1970). Horticulture Digest. University of Hawaii at Manoa, Department of Horticulture.
Chicago-referens (17:e uppl.)Não informado. Horticulture Digest. Honolulu, Hawaii: University of Hawaii at Manoa, Department of Horticulture, 1970.
MLA-referens (8:e uppl.)Não informado. Horticulture Digest. University of Hawaii at Manoa, Department of Horticulture, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.