APA (7th ed.) Citation

United States. Work Projects Administration & Mangus, A. R. (1940). Rural regions of the United States. U. S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

United States. Work Projects Administration and A. R. Mangus. Rural Regions of the United States. Washington: U. S. Govt. Print. Off, 1940.

MLA (9th ed.) Citation

United States. Work Projects Administration and A. R. Mangus. Rural Regions of the United States. U. S. Govt. Print. Off, 1940.