Federal Reserve Bank of Chicago. "September 1, 1929, Volume 12, Number 9," Business Conditions (Federal Reserve Bank of Chicago) (September 1, 1929). https://fraser.stlouisfed.org/title/5562/item/574525, accessed on April 23, 2024.
Federal Reserve Bank of Chicago. "September 1, 1929, Volume 12, Number 9," Business Conditions (Federal Reserve Bank of Chicago) (September 1, 1929). https://fraser.stlouisfed.org/title/5562/item/574525, accessed on April 23, 2024.