Federal Reserve Bank of St. Louis. "Week Ending: February 9, 1972," U.S. Financial Data (February 9, 1972). https://fraser.stlouisfed.org/title/5335/item/537934, accessed on February 28, 2021.
Federal Reserve Bank of St. Louis. "Week Ending: February 9, 1972," U.S. Financial Data (February 9, 1972). https://fraser.stlouisfed.org/title/5335/item/537934, accessed on February 28, 2021.