United States. Bureau of Labor Statistics. "April 1973," The Employment Situation (May 4, 1973). https://fraser.stlouisfed.org/title/144/item/496995, accessed on April 25, 2024.
United States. Bureau of Labor Statistics. "April 1973," The Employment Situation (May 4, 1973). https://fraser.stlouisfed.org/title/144/item/496995, accessed on April 25, 2024.