United States. Bureau of Labor Statistics. "Second Quarter 1986," Productivity and Costs (July 30, 1986). https://fraser.stlouisfed.org/title/131/item/55795, accessed on April 26, 2024.
United States. Bureau of Labor Statistics. "Second Quarter 1986," Productivity and Costs (July 30, 1986). https://fraser.stlouisfed.org/title/131/item/55795, accessed on April 26, 2024.