35th Annual Plenary Meeting, Cozumel, Mexico, 1-4 October 1980.

35th Annual Plenary Meeting, Cozumel, Mexico, 1-4 October 1980., Box: 1, Folder: 5. Rodman C. Rockefeller Records of the Mexico-U.S. Business Committee, 2005-09. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/376373 Accessed September 25, 2026.