Federal Reserve Bank of St. Louis. "Cover Page," in Federal Reserve Bank of St. Louis. "June 1968," National Economic Trends (June 1968) : 1-1. https://fraser.stlouisfed.org/title/870/item/34136/toc/81748 , accessed on May 7, 2024.
Federal Reserve Bank of St. Louis. "Cover Page," in Federal Reserve Bank of St. Louis. "June 1968," National Economic Trends (June 1968) : 1-1. https://fraser.stlouisfed.org/title/870/item/34136/toc/81748 , accessed on May 7, 2024.