1. United States Department of Agriculture, Natural Resources Conservation Service. Wetland Fact Sheet—Prior Converted Wetlands. [https://www.nrcs.usda.gov/wps/portal/nrcs/detail/vt/programs/?cid=nrcs142p2_010517, Verified August 2018]
2. Epperson JE. Missouri wetlands: A vanishing resource. Water Resources Report No. 39. Missouri Department Natural Resources. Division of Geology and Land Survey. Jefferson City, Missouri. 1992. [https://dnr.mo.gov/pubs/WR39.pdf, Verified August 2018]
3. Festervand DF. Cooperative Soil Survey of Cape Girardeau, Scott and Mississippi Counties, Missouri. Washington, DC: United States Department of Agriculture-Soil Conservation Service; 1981
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5. United States Department of Agriculture, Natural Resources Conservation Service. In: Vasilas LM, Hurt GW, Berkowitz JF, editors. Field Indicators of Hydric Soils in the United States. A Guide for Identifying and Delineating Hydric Soils, Version 8.1. United State Government Printing Office, Washington DC. 2017. [https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_053171.pdf, Verified August 2018]