Macfarlane , P. Allen, and Lawrence R. Hathaway. “The Hydrogeology and Chemical Quality of Ground Waters from the Lower Paleozoic Aquifers in the Tri-State Region of Kansas, Missouri, and Oklahoma”.
Bulletin (Kansas Geological Survey) (January 1, 1987): 1–37. Accessed May 11, 2025.
https://journals.ku.edu/kgsbulletin/article/view/23541.