Não informado. (1958). North Dakota Farm Research. North Dakota Agricultural Experiment Station.
Style de citation Chicago (17e éd.)Não informado. North Dakota Farm Research. Fargo, ND: North Dakota Agricultural Experiment Station, 1958.
Style de citation MLA (8e éd.)Não informado. North Dakota Farm Research. North Dakota Agricultural Experiment Station, 1958.
Attention : ces citations peuvent ne pas être correctes à 100%.