APA (7e ed.) Bronvermelding

North Dakota Agricultural College. Agricultural Extension Division. (1918). Circular. Agricultural Extension Division, North Dakota Agricultural College.

Chicago (17e ed.) Bronvermelding

North Dakota Agricultural College. Agricultural Extension Division. Circular. Fargo, N.D.: Agricultural Extension Division, North Dakota Agricultural College, 1918.

MLA (8e ed.) Bronvermelding

North Dakota Agricultural College. Agricultural Extension Division. Circular. Agricultural Extension Division, North Dakota Agricultural College, 1918.

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