Sawin, Robert S., Evan K. Franseen, Greg A. Ludvigson, W. Lynn Watney, and Ronald R. West. “Precambrian Nomenclature in Kansas”. Current Research in Earth Sciences, no. 259 (April 11, 2013): 1–5. Accessed November 21, 2024. https://journals.ku.edu/cres/article/view/11840.