APA (7th ed.) Citation

United States. Soil Conservation Service. (1938). Soil defense in the Northeast. [s.n.].

Chicago Style (17th ed.) Citation

United States. Soil Conservation Service. Soil Defense in the Northeast. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. Soil Conservation Service. Soil Defense in the Northeast. [s.n.], 1938.

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