United States. Bureau of Labor Statistics. "February 1967," The Employment Situation (March 16, 1967). https://fraser.stlouisfed.org/title/144/item/496921, accessed on September 24, 2023.
Public Domain
United States. Bureau of Labor Statistics. "February 1967," The Employment Situation (March 16, 1967). https://fraser.stlouisfed.org/title/144/item/496921, accessed on September 24, 2023.
Public Domain