Rivera, Julius. "Selected Characteristics of Two Migrant Groups Visiting Colorado in 1957", circa 1958

Rivera, Julius. "Selected Characteristics of Two Migrant Groups Visiting Colorado in 1957", circa 1958, Box: 194, 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/389689 Accessed September 27, 2026.