APA (7th ed.) Citation

United States. Bureau of Chemistry and Soils. (1939). Soil survey, Sarpy County, Nebr. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Chemistry and Soils. Soil Survey, Sarpy County, Nebr. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. Bureau of Chemistry and Soils. Soil Survey, Sarpy County, Nebr. [s.n.], 1939.

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