16. Petroleum Prospects of Deep Offshore. Correspondence on Publication of Paper Following Shelton's letter to me, May 25, 1978, Box: 83, Folder: 16. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/151412 Accessed November 28, 2024.