United States. Bureau of Labor Statistics. "January 1975," The Employment Situation (February 7, 1975). https://fraser.stlouisfed.org/title/144/item/56090, accessed on May 9, 2024.
United States. Bureau of Labor Statistics. "January 1975," The Employment Situation (February 7, 1975). https://fraser.stlouisfed.org/title/144/item/56090, accessed on May 9, 2024.