APA

Berry P. E., .Systematics of the apetalous Fuchsias of south America, Fuchsia sect. Hemsleyella (<Onagraceae>). : .

Chicago

Berry Paul E, .Systematics of the apetalous Fuchsias of south America, Fuchsia sect. Hemsleyella (<Onagraceae>). : .

Harvard

Berry P. E., .Systematics of the apetalous Fuchsias of south America, Fuchsia sect. Hemsleyella (<Onagraceae>). : .

MLA

Berry Paul E, .: . .