United States. Bureau of Labor Statistics. "May 1967," The Employment Situation (June 5, 1967). https://fraser.stlouisfed.org/title/144/item/496924, accessed on March 28, 2024.
United States. Bureau of Labor Statistics. "May 1967," The Employment Situation (June 5, 1967). https://fraser.stlouisfed.org/title/144/item/496924, accessed on March 28, 2024.