APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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