"Oil and Gas Potential of the Maritime Boundary Region in the Central Gulf of Mexico" R.Q. Foote, R.G. Martin, and R.B. Powers, Box: 31, Folder: 9. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/149872 Accessed December 26, 2024.