United States. Bureau of Labor Statistics. "February 1980," The Employment Situation (March 7, 1980). https://fraser.stlouisfed.org/title/144/item/56134, accessed on April 17, 2024.
United States. Bureau of Labor Statistics. "February 1980," The Employment Situation (March 7, 1980). https://fraser.stlouisfed.org/title/144/item/56134, accessed on April 17, 2024.