Tinker Foundation, University of Texas Proposal, Szekely and Utton, "Managing Transboundary Energy Resources in the U.S. - Mexico Boundary Region", September 1982, Box: 48, Folder: 27. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/150468 Accessed November 28, 2024.