APA (7th ed.) Citation

United States. Soil Conservation Service. (1938). Soil conservation, index, volume 3, July 1937 to June 1938. [s.n.].

Chicago Style (17th ed.) Citation

United States. Soil Conservation Service. Soil Conservation, Index, Volume 3, July 1937 to June 1938. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. Soil Conservation Service. Soil Conservation, Index, Volume 3, July 1937 to June 1938. [s.n.], 1938.

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