Federal Reserve Bank of Chicago. "July 28, 1937, Volume 20, Number 7," Business Conditions (Federal Reserve Bank of Chicago) (July 28, 1937). https://fraser.stlouisfed.org/title/5562/item/539894, accessed on April 24, 2024.
Federal Reserve Bank of Chicago. "July 28, 1937, Volume 20, Number 7," Business Conditions (Federal Reserve Bank of Chicago) (July 28, 1937). https://fraser.stlouisfed.org/title/5562/item/539894, accessed on April 24, 2024.