North Dakota Agricultural College. Agricultural Extension Division. (1918). Circular. Agricultural Extension Division, North Dakota Agricultural College.
Style de citation Chicago (17e éd.)North Dakota Agricultural College. Agricultural Extension Division. Circular. Fargo, N.D.: Agricultural Extension Division, North Dakota Agricultural College, 1918.
Style de citation MLA (8e éd.)North Dakota Agricultural College. Agricultural Extension Division. Circular. Agricultural Extension Division, North Dakota Agricultural College, 1918.
Attention : ces citations peuvent ne pas être correctes à 100%.