U.S. Department of Labor. Employment and Unemployment in 1969, Special Labor Force Report 116, 1970 February

U.S. Department of Labor. Employment and Unemployment in 1969, Special Labor Force Report 116, 1970 February, Box: 207, Folder: 13. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/389984 Accessed September 27, 2026.