Federal Reserve Bank of Chicago. "August 1965," Business Conditions (Federal Reserve Bank of Chicago) (August 1965). https://fraser.stlouisfed.org/title/5562/item/540230, accessed on April 19, 2024.
Federal Reserve Bank of Chicago. "August 1965," Business Conditions (Federal Reserve Bank of Chicago) (August 1965). https://fraser.stlouisfed.org/title/5562/item/540230, accessed on April 19, 2024.