United States. Bureau of Labor Statistics. Technology and Its Impact on Labor in Four Industries: Lumber and Wood Products, Footwear, Hydraulic Cement, Wholesale Trade : Bulletin of the United States Bureau of Labor Statistics, No. 2263. Washington, D. C.: U.S. Dept. of Labor, Bureau of Labor Statistics, November 1986, https://fraser.stlouisfed.org/title/5248, accessed on December 22, 2024.