Não informado. (1914). Annual report of the Iowa Agricultural Experiment Station. Iowa State College of Agriculture and Mechanic Arts.
Chicago (17e ed.) BronvermeldingNão informado. Annual Report of the Iowa Agricultural Experiment Station. Ames, Iowa: Iowa State College of Agriculture and Mechanic Arts, 1914.
MLA (8e ed.) BronvermeldingNão informado. Annual Report of the Iowa Agricultural Experiment Station. Iowa State College of Agriculture and Mechanic Arts, 1914.
Let op: Deze citaties zijn niet altijd 100% accuraat.