Federal Reserve Bank of St. Louis. "Prices," in Federal Reserve Bank of St. Louis. "April 1968," National Economic Trends (April 1968) : 10-11. https://fraser.stlouisfed.org/title/870/item/33985/toc/53930 , accessed on March 29, 2024.
Federal Reserve Bank of St. Louis. "Prices," in Federal Reserve Bank of St. Louis. "April 1968," National Economic Trends (April 1968) : 10-11. https://fraser.stlouisfed.org/title/870/item/33985/toc/53930 , accessed on March 29, 2024.