APA (7th ed.) Citation

United States. Soil Conservation Service. (1991). Soil survey of Carroll County, Indiana. The Service.

Chicago Style (17th ed.) Citation

United States. Soil Conservation Service. Soil Survey of Carroll County, Indiana. [Washington, D.C.?]: The Service, 1991.

MLA (9th ed.) Citation

United States. Soil Conservation Service. Soil Survey of Carroll County, Indiana. The Service, 1991.

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