Federal Reserve Bank of Chicago. "February 28, 1938, Volume 21, Number 2," Business Conditions (Federal Reserve Bank of Chicago) (February 28, 1938). https://fraser.stlouisfed.org/title/5562/item/539901, accessed on May 7, 2024.
Federal Reserve Bank of Chicago. "February 28, 1938, Volume 21, Number 2," Business Conditions (Federal Reserve Bank of Chicago) (February 28, 1938). https://fraser.stlouisfed.org/title/5562/item/539901, accessed on May 7, 2024.