Federal Reserve Bank of Chicago. "June 1, 1929, Volume 12, Number 6," Business Conditions (Federal Reserve Bank of Chicago) (June 1, 1929). https://fraser.stlouisfed.org/title/5562/item/574522, accessed on April 25, 2024.
Federal Reserve Bank of Chicago. "June 1, 1929, Volume 12, Number 6," Business Conditions (Federal Reserve Bank of Chicago) (June 1, 1929). https://fraser.stlouisfed.org/title/5562/item/574522, accessed on April 25, 2024.