United States. Bureau of Labor Statistics. "May 1970," The Employment Situation (June 5, 1970). https://fraser.stlouisfed.org/title/144/item/496960, accessed on April 17, 2024.
United States. Bureau of Labor Statistics. "May 1970," The Employment Situation (June 5, 1970). https://fraser.stlouisfed.org/title/144/item/496960, accessed on April 17, 2024.