1. Aley, T., Thomson, K.C., 1981. Hydrogeologic mapping of unincorporated Greene County, Missouri, to identify areas where sinkhole flooding and serious groundwater contamination could result from land development. Report prepared for Greene County Sewer District/U.S.EPA. Ozark Underground Laboratory, Protem, MO.
2. Giles, M., Russel, W.O., 1990. Personal communication, Public Works Department, City of Springfield, Greene County, MO.
3. Hayes, W.C., 1977. Urban development in a karst terrain — Springfield, Missouri. Report prepared for the Department of Housing and Urban Development, Springfield, MO.
4. Hayes, W.C., Thomson, K.C., 1973. Engineering and environmental geology of the Springfield urban area. Association of Missouri Geologists Twentieth Annual Meeting, Branson, Missouri, Southwest Missouri State University, Springfield, MO.
5. Hayes, W.C., Vineyard, J.D., 1969. Environmental geology of towne and country: Missouri Geologic Survey and Water Resources, Rolla, Missouri, Educational Series Report No. 2.