Federal Reserve Bank of St. Louis. "Cover Page," in Federal Reserve Bank of St. Louis. "April 1968," National Economic Trends (April 1968) : 1-1. https://fraser.stlouisfed.org/title/870/item/33985/toc/53925 , accessed on April 25, 2024.
Federal Reserve Bank of St. Louis. "Cover Page," in Federal Reserve Bank of St. Louis. "April 1968," National Economic Trends (April 1968) : 1-1. https://fraser.stlouisfed.org/title/870/item/33985/toc/53925 , accessed on April 25, 2024.