APA

Federal Writers' Project of the Works Progress Administration for the State of North Dakota, State Historical Society of North Dakota, . (1950). North Dakota, a guide to the northern prairie state. New York: Oxford University Press.

Chicago

Federal Writers' Project of the Works Progress Administration for the State of North Dakota, State Historical Society of North Dakota, . 1950. North Dakota, a guide to the northern prairie state. New York: Oxford University Press.

Harvard

Federal Writers' Project of the Works Progress Administration for the State of North Dakota, State Historical Society of North Dakota, . (1950). North Dakota, a guide to the northern prairie state. New York: Oxford University Press.

MLA

Federal Writers' Project of the Works Progress Administration for the State of North Dakota, State Historical Society of North Dakota, . North Dakota, a guide to the northern prairie state. New York: Oxford University Press. 1950.