レディウィリアムズ
archive.org/web/20140110183622/http://www.dpi.nsw.gov.au/agriculture/horticulture/pomes/varieties/cripps-pink 2015年11月7日閲覧。
↑ Successful apple breeding – patience, perseverance and luck: New varieties, Government of Western Australia: Department of Agriculture and Food, https://www.agric.wa.gov.au/pome-fruit/successful-apple-breeding-–-patience-perseverance-and-luck?page=0%2C1 2015年11月7日閲覧。