Quintana Roo (Cancun) and Sonora (Ciudad Obregon), 1968, 1978

Quintana Roo (Cancun) and Sonora (Ciudad Obregon), 1968, 1978, Box: 62, Folder: 13. Alliance of Pan American Round Tables Records, 972738419. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/504306 Accessed September 26, 2026.