APA (7th ed.) Citation

United States. Natural Resources Conservation Service, Oklahoma Agricultural Experiment Station, & Oklahoma Conservation Commission. (2007). Supplement to the soil survey of Custer County, Oklahoma. Natural Resources Conservation Service.

Chicago Style (17th ed.) Citation

United States. Natural Resources Conservation Service, Oklahoma Agricultural Experiment Station, and Oklahoma Conservation Commission. Supplement to the Soil Survey of Custer County, Oklahoma. [Washington, D.C.]: Natural Resources Conservation Service, 2007.

MLA (9th ed.) Citation

United States. Natural Resources Conservation Service, et al. Supplement to the Soil Survey of Custer County, Oklahoma. Natural Resources Conservation Service, 2007.