APA (7th ed.) Citation

DeWitt, T. A. (1990). Soil survey of Decatur County, Iowa. U.S. Dept. of Agriculture, Soil Conservation Service.

Chicago Style (17th ed.) Citation

DeWitt, Thomas A. Soil Survey of Decatur County, Iowa. [Washington, D.C.?]: U.S. Dept. of Agriculture, Soil Conservation Service, 1990.

MLA (9th ed.) Citation

DeWitt, Thomas A. Soil Survey of Decatur County, Iowa. U.S. Dept. of Agriculture, Soil Conservation Service, 1990.

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