Federal Reserve Bank of Chicago. "March 29, 1938, Volume 21, Number 3," Business Conditions (Federal Reserve Bank of Chicago) (March 29, 1938). https://fraser.stlouisfed.org/title/5562/item/539902, accessed on April 18, 2024.
Federal Reserve Bank of Chicago. "March 29, 1938, Volume 21, Number 3," Business Conditions (Federal Reserve Bank of Chicago) (March 29, 1938). https://fraser.stlouisfed.org/title/5562/item/539902, accessed on April 18, 2024.