United States. Bureau of Labor Statistics. "June 1991," The Employment Situation (July 5, 1991). https://fraser.stlouisfed.org/title/144/item/56021, accessed on March 28, 2024.
United States. Bureau of Labor Statistics. "June 1991," The Employment Situation (July 5, 1991). https://fraser.stlouisfed.org/title/144/item/56021, accessed on March 28, 2024.