Barrett, Donald N. "Working Paper on Occupational Densities of Spanish Heritage Texans," N.p., undated

Barrett, Donald N. "Working Paper on Occupational Densities of Spanish Heritage Texans," N.p., undated, Box: 154, Folder: 17. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/388646 Accessed September 26, 2026.