APA (7th ed.) Citation

United States. Soil Conservation Service. (1937). Soil conservation districts for erosion control. [s.n.].

Chicago Style (17th ed.) Citation

United States. Soil Conservation Service. Soil Conservation Districts for Erosion Control. [Washington]: [s.n.], 1937.

MLA (9th ed.) Citation

United States. Soil Conservation Service. Soil Conservation Districts for Erosion Control. [s.n.], 1937.

Warning: These citations may not always be 100% accurate.