A. Past and Prospective Demands - Sam H. Shurr; B. The Future Supply of Energy Resources - B.C. Netschent, Box: 4, Folder: 30. Wallace E. Pratt papers, RH MS 870. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/34040 Accessed February 17, 2025.