Federal Reserve Bank of Chicago. "October 31, 1921, Volume 4, Number 10," Business Conditions (Federal Reserve Bank of Chicago) (October 31, 1921). https://fraser.stlouisfed.org/title/5562/item/574430, accessed on April 23, 2024.
Federal Reserve Bank of Chicago. "October 31, 1921, Volume 4, Number 10," Business Conditions (Federal Reserve Bank of Chicago) (October 31, 1921). https://fraser.stlouisfed.org/title/5562/item/574430, accessed on April 23, 2024.