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Technological Change and Manpower Trends in Six Industries: Textile Mill Products, Lumber and Wood Products, Tires and Tubes, Aluminum, Banking, Health Services : Bulletin of the United States Bureau of Labor Statistics, No. 1817 ,
Washington, D.C:
U.S. Dept. of Labor, Bureau of Labor Statistics,
1974, https://fraser.stlouisfed.org/title/4856,
accessed on December 2, 2025.