United States. Soil Conservation Service & University of Minnesota. Agricultural Experiment Station. (1989). Soil survey of Martin County, Minnesota. The Service.
Chicago Style (17th ed.) CitationUnited States. Soil Conservation Service and University of Minnesota. Agricultural Experiment Station. Soil Survey of Martin County, Minnesota. [Washington]: The Service, 1989.
MLA (8th ed.) CitationUnited States. Soil Conservation Service and University of Minnesota. Agricultural Experiment Station. Soil Survey of Martin County, Minnesota. The Service, 1989.
Warning: These citations may not always be 100% accurate.