C. K. Bayne, K. L. Walters, and N. D. Plummer, “Geology and Ground-Water Resources of Cloud County, Kansas / with a section on Ceramic Materials”, kgsbulletin, no. 139, pp. 1–144, Jan. 1959, Accessed: Nov. 03, 2024. [Online]. Available: https://journals.ku.edu/kgsbulletin/article/view/22155