Federal Reserve Bank of Chicago. "November 29, 1930, Volume 13, Number 12," Business Conditions (Federal Reserve Bank of Chicago) (November 29, 1930). https://fraser.stlouisfed.org/title/5562/item/574539, accessed on March 28, 2024.
Federal Reserve Bank of Chicago. "November 29, 1930, Volume 13, Number 12," Business Conditions (Federal Reserve Bank of Chicago) (November 29, 1930). https://fraser.stlouisfed.org/title/5562/item/574539, accessed on March 28, 2024.