APA (7th ed.) Citation

Goke, A. W., & Penn, R. E. (1937). Soil survey of Greer County, Oklahoma. U.S. Bureau of Chemistry and Soils.

Chicago Style (17th ed.) Citation

Goke, Alwin William, and R. E. Penn. Soil Survey of Greer County, Oklahoma. Washington: U.S. Bureau of Chemistry and Soils, 1937.

MLA (9th ed.) Citation

Goke, Alwin William, and R. E. Penn. Soil Survey of Greer County, Oklahoma. U.S. Bureau of Chemistry and Soils, 1937.