Echeverría Alvarez, Luís. "Presidential Inauguration." Mexican Business Council, circa 1970

Echeverría Alvarez, Luís. "Presidential Inauguration." Mexican Business Council, circa 1970, Box: 167, Folder: 5. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/388944 Accessed September 27, 2026.