Federal Reserve Bank of St. Louis. "1966 : A Year of Continued Expansion in the Central Mississippi Valley," in Federal Reserve Bank of St. Louis. "January 1967," Review (Federal Reserve Bank of St. Louis) (January 1967) : 5-15. https://fraser.stlouisfed.org/title/820/item/24406/toc/499534 , accessed on April 26, 2024.