Federal Reserve Bank of Chicago. "June 30, 1922, Volume 5, Number 6," Business Conditions (Federal Reserve Bank of Chicago) (June 30, 1922). https://fraser.stlouisfed.org/title/5562/item/574438, accessed on May 7, 2024.
Federal Reserve Bank of Chicago. "June 30, 1922, Volume 5, Number 6," Business Conditions (Federal Reserve Bank of Chicago) (June 30, 1922). https://fraser.stlouisfed.org/title/5562/item/574438, accessed on May 7, 2024.