Não informado. (2000). Bulletin. Minnesota Agricultural Experiment Station.
Style de citation Chicago (17e éd.)Não informado. Bulletin. Saint Paul, Minn: Minnesota Agricultural Experiment Station, 2000.
Style de citation MLA (8e éd.)Não informado. Bulletin. Minnesota Agricultural Experiment Station, 2000.
Attention : ces citations peuvent ne pas être correctes à 100%.