APA (7th ed.) Citation

Richmond, D. L. (1976). Soil survey of Willcox area, Arizona: Parts of Cochise and Graham Counties. U.S. Dept. of Agriculture, Soil Conservation Service.

Chicago Style (17th ed.) Citation

Richmond, Davie L. Soil Survey of Willcox Area, Arizona: Parts of Cochise and Graham Counties. [Washington]: U.S. Dept. of Agriculture, Soil Conservation Service, 1976.

MLA (9th ed.) Citation

Richmond, Davie L. Soil Survey of Willcox Area, Arizona: Parts of Cochise and Graham Counties. U.S. Dept. of Agriculture, Soil Conservation Service, 1976.