United States. Bureau of Labor Statistics. "March 1969," The Employment Situation (April 8, 1969). https://fraser.stlouisfed.org/title/144/item/496946, accessed on September 27, 2023.
Public Domain
United States. Bureau of Labor Statistics. "March 1969," The Employment Situation (April 8, 1969). https://fraser.stlouisfed.org/title/144/item/496946, accessed on September 27, 2023.
Public Domain