Federal Reserve Bank of Chicago. "February 1, 1919," Business Conditions (Federal Reserve Bank of Chicago) (February 1, 1919). https://fraser.stlouisfed.org/title/5562/item/574399, accessed on April 16, 2024.
Federal Reserve Bank of Chicago. "February 1, 1919," Business Conditions (Federal Reserve Bank of Chicago) (February 1, 1919). https://fraser.stlouisfed.org/title/5562/item/574399, accessed on April 16, 2024.