Federal Reserve Bank of Chicago. "July 29, 1938, Volume 21, Number 7," Business Conditions (Federal Reserve Bank of Chicago) (July 29, 1938). https://fraser.stlouisfed.org/title/5562/item/539906, accessed on May 4, 2024.
Federal Reserve Bank of Chicago. "July 29, 1938, Volume 21, Number 7," Business Conditions (Federal Reserve Bank of Chicago) (July 29, 1938). https://fraser.stlouisfed.org/title/5562/item/539906, accessed on May 4, 2024.