Federal Reserve Bank of Chicago. "January 1, 1926, Volume 9, Number 1," Business Conditions (Federal Reserve Bank of Chicago) (January 1, 1926). https://fraser.stlouisfed.org/title/5562/item/574481, accessed on April 25, 2024.
Federal Reserve Bank of Chicago. "January 1, 1926, Volume 9, Number 1," Business Conditions (Federal Reserve Bank of Chicago) (January 1, 1926). https://fraser.stlouisfed.org/title/5562/item/574481, accessed on April 25, 2024.