Federal Reserve Bank of Chicago. "July 1, 1923, Volume 6, Number 7," Business Conditions (Federal Reserve Bank of Chicago) (July 1, 1923). https://fraser.stlouisfed.org/title/5562/item/574451, accessed on April 26, 2024.
Federal Reserve Bank of Chicago. "July 1, 1923, Volume 6, Number 7," Business Conditions (Federal Reserve Bank of Chicago) (July 1, 1923). https://fraser.stlouisfed.org/title/5562/item/574451, accessed on April 26, 2024.