Federal Reserve Bank of Chicago. "September 29, 1938, Volume 21, Number 9," Business Conditions (Federal Reserve Bank of Chicago) (September 29, 1938). https://fraser.stlouisfed.org/title/5562/item/539908, accessed on April 25, 2024.
Federal Reserve Bank of Chicago. "September 29, 1938, Volume 21, Number 9," Business Conditions (Federal Reserve Bank of Chicago) (September 29, 1938). https://fraser.stlouisfed.org/title/5562/item/539908, accessed on April 25, 2024.