United States. Bureau of Labor Statistics. "November 1967," The Employment Situation (December 13, 1967). https://fraser.stlouisfed.org/title/144/item/496930, accessed on September 21, 2023.
Public Domain
United States. Bureau of Labor Statistics. "November 1967," The Employment Situation (December 13, 1967). https://fraser.stlouisfed.org/title/144/item/496930, accessed on September 21, 2023.
Public Domain