United States. Bureau of Labor Statistics. "September 1990," The Employment Situation (October 5, 1990). https://fraser.stlouisfed.org/title/144/item/56213, accessed on April 18, 2024.
United States. Bureau of Labor Statistics. "September 1990," The Employment Situation (October 5, 1990). https://fraser.stlouisfed.org/title/144/item/56213, accessed on April 18, 2024.