Não informado. (1914). Station bulletin. Oregon Agricultural Experiment Station.
Chicago (17e ed.) BronvermeldingNão informado. Station Bulletin. Corvallis, Ore: Oregon Agricultural Experiment Station, 1914.
MLA (8e ed.) BronvermeldingNão informado. Station Bulletin. Oregon Agricultural Experiment Station, 1914.
Let op: Deze citaties zijn niet altijd 100% accuraat.