United States. Bureau of Labor Statistics. "June 1970," The Employment Situation (July 2, 1970). https://fraser.stlouisfed.org/title/144/item/496961, accessed on April 24, 2024.
United States. Bureau of Labor Statistics. "June 1970," The Employment Situation (July 2, 1970). https://fraser.stlouisfed.org/title/144/item/496961, accessed on April 24, 2024.