9. "One of the pens used by the President, August 5, 1965...", 1965

9. "One of the pens used by the President, August 5, 1965...", 1965, Box: 149. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/388558 Accessed September 26, 2026.