Federal Reserve Bank of St. Louis. "Prices," in Federal Reserve Bank of St. Louis. "March 1968," National Economic Trends (March 1968) : 10-11. https://fraser.stlouisfed.org/title/870/item/34262/toc/274038 , accessed on May 2, 2024.
Federal Reserve Bank of St. Louis. "Prices," in Federal Reserve Bank of St. Louis. "March 1968," National Economic Trends (March 1968) : 10-11. https://fraser.stlouisfed.org/title/870/item/34262/toc/274038 , accessed on May 2, 2024.