APA (7e ed.) Bronvermelding

Não informado. (1958). North Dakota Farm Research. North Dakota Agricultural Experiment Station.

Chicago (17e ed.) Bronvermelding

Não informado. North Dakota Farm Research. Fargo, ND: North Dakota Agricultural Experiment Station, 1958.

MLA (8e ed.) Bronvermelding

Não informado. North Dakota Farm Research. North Dakota Agricultural Experiment Station, 1958.

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