Goose Creek Oil and Gas Field, Explanation for the Surface Subsidence, by W.E. Pratt and D.W. Johnson, L.C. Snider, Box: 6, Folder: 3. Wallace E. Pratt papers, RH MS 870. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/34123 Accessed May 19, 2024.