Francis, E.K. "Project: The Spanish Americans in the Upper Rio Grande Valley." Progress Report III, circa 1958

Francis, E.K. "Project: The Spanish Americans in the Upper Rio Grande Valley." Progress Report III, circa 1958, Box: 171, Folder: 8. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/389061 Accessed September 27, 2026.