National Energy Policy Plan V, Statement and Recommendations from the American Association of Petroleum Geologists to the Department of Energy, November 1, 1984, Box: 31, Folder: 10. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/149873 Accessed May 04, 2024.