United States. Bureau of Labor Statistics. "July 1970," The Employment Situation (August 7, 1970). https://fraser.stlouisfed.org/title/144/item/496962, accessed on May 9, 2024.
United States. Bureau of Labor Statistics. "July 1970," The Employment Situation (August 7, 1970). https://fraser.stlouisfed.org/title/144/item/496962, accessed on May 9, 2024.