"Do Geologists Find Oil?" - W.E. Pratt lecture before students of petroleum geology of the University of Arizona, Tucson, 1964, Box: 4, Folder: 55. Wallace E. Pratt papers, RH MS 870. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/34063 Accessed March 12, 2025.