Federal Reserve Bank of St. Louis. "Week Ending August 28, 1968," U.S. Financial Data (August 28, 1968). https://fraser.stlouisfed.org/title/5335/item/537779, accessed on February 28, 2021.
Federal Reserve Bank of St. Louis. "Week Ending August 28, 1968," U.S. Financial Data (August 28, 1968). https://fraser.stlouisfed.org/title/5335/item/537779, accessed on February 28, 2021.