Federal Reserve Bank of St. Louis. "General Price Indexes," in Federal Reserve Bank of St. Louis. "July 1968," National Economic Trends (July 1968) : 12-13. https://fraser.stlouisfed.org/title/870/item/34140/toc/378820 , accessed on April 25, 2024.
Federal Reserve Bank of St. Louis. "General Price Indexes," in Federal Reserve Bank of St. Louis. "July 1968," National Economic Trends (July 1968) : 12-13. https://fraser.stlouisfed.org/title/870/item/34140/toc/378820 , accessed on April 25, 2024.