Federal Reserve Bank of St. Louis. "General Price Indexes," in Federal Reserve Bank of St. Louis. "May 1968," National Economic Trends (May 1968) : 12-13. https://fraser.stlouisfed.org/title/870/item/34151/toc/375961 , accessed on March 28, 2024.
Federal Reserve Bank of St. Louis. "General Price Indexes," in Federal Reserve Bank of St. Louis. "May 1968," National Economic Trends (May 1968) : 12-13. https://fraser.stlouisfed.org/title/870/item/34151/toc/375961 , accessed on March 28, 2024.