Federal Reserve Bank of St. Louis. "February 1968," Review (Federal Reserve Bank of St. Louis) (February 1968). https://fraser.stlouisfed.org/title/820/item/24606, accessed on April 18, 2024.
Federal Reserve Bank of St. Louis. "February 1968," Review (Federal Reserve Bank of St. Louis) (February 1968). https://fraser.stlouisfed.org/title/820/item/24606, accessed on April 18, 2024.