Federal Reserve Bank of St. Louis. "Selected Economic Indicators : Central Mississippi Valley, December 1970," Pieces of Eight (January 4, 1971). https://fraser.stlouisfed.org/title/5743/item/577868, accessed on April 25, 2024.
Federal Reserve Bank of St. Louis. "Selected Economic Indicators : Central Mississippi Valley, December 1970," Pieces of Eight (January 4, 1971). https://fraser.stlouisfed.org/title/5743/item/577868, accessed on April 25, 2024.