Não informado. (1901). Bulletin. Iowa State College of Agriculture and Mechanic Arts.
Chicago (17e ed.) BronvermeldingNão informado. Bulletin. Ames, Iowa: Iowa State College of Agriculture and Mechanic Arts, 1901.
MLA (8e ed.) BronvermeldingNão informado. Bulletin. Iowa State College of Agriculture and Mechanic Arts, 1901.
Let op: Deze citaties zijn niet altijd 100% accuraat.