APA (7th ed.) Citation

Goke, A. W., Carr, M. E., & Penn, R. E. (1939). Soil survey, Alfalfa County, Oklahoma. U.S. Bureau of Chemistry and Soils.

Chicago Style (17th ed.) Citation

Goke, Alwin William, M. Earl Carr, and R. E. Penn. Soil Survey, Alfalfa County, Oklahoma. Washington: U.S. Bureau of Chemistry and Soils, 1939.

MLA (9th ed.) Citation

Goke, Alwin William, et al. Soil Survey, Alfalfa County, Oklahoma. U.S. Bureau of Chemistry and Soils, 1939.