APA (7th ed.) Citation

United States. Natural Resources Conservation Service & Minnesota Agricultural Experiment Station. (2001). Soil survey of Otter Tail County, Minnesota. The Service.

Chicago Style (17th ed.) Citation

United States. Natural Resources Conservation Service and Minnesota Agricultural Experiment Station. Soil Survey of Otter Tail County, Minnesota. [Washington, D.C.?]: The Service, 2001.

MLA (8th ed.) Citation

United States. Natural Resources Conservation Service and Minnesota Agricultural Experiment Station. Soil Survey of Otter Tail County, Minnesota. The Service, 2001.