United States. Bureau of Labor Statistics. "May 1987," The Employment Situation (June 4, 1987). https://fraser.stlouisfed.org/title/144/item/56192, accessed on April 25, 2024.
United States. Bureau of Labor Statistics. "May 1987," The Employment Situation (June 4, 1987). https://fraser.stlouisfed.org/title/144/item/56192, accessed on April 25, 2024.