United States. Bureau of Labor Statistics. "December 1986," The Employment Situation (January 9, 1987). https://fraser.stlouisfed.org/title/144/item/56040, accessed on April 25, 2024.
United States. Bureau of Labor Statistics. "December 1986," The Employment Situation (January 9, 1987). https://fraser.stlouisfed.org/title/144/item/56040, accessed on April 25, 2024.