Federal Reserve Bank of Chicago. "December 1, 1928, Volume 11, Number 12," Business Conditions (Federal Reserve Bank of Chicago) (December 1, 1928). https://fraser.stlouisfed.org/title/5562/item/574516, accessed on April 18, 2024.
Federal Reserve Bank of Chicago. "December 1, 1928, Volume 11, Number 12," Business Conditions (Federal Reserve Bank of Chicago) (December 1, 1928). https://fraser.stlouisfed.org/title/5562/item/574516, accessed on April 18, 2024.