APA (7e ed.) Bronvermelding

Não informado. (2007). Report of the Iowa Agricultural Experiment Station for de two years. Agricultural Experiment Station.

Chicago (17e ed.) Bronvermelding

Não informado. Report of the Iowa Agricultural Experiment Station for De Two Years. Ames, Iowa: Agricultural Experiment Station, 2007.

MLA (8e ed.) Bronvermelding

Não informado. Report of the Iowa Agricultural Experiment Station for De Two Years. Agricultural Experiment Station, 2007.

Let op: Deze citaties zijn niet altijd 100% accuraat.