Federal Reserve Bank of Chicago. "June 29, 1938, Volume 21, Number 6," Business Conditions (Federal Reserve Bank of Chicago) (June 29, 1938). https://fraser.stlouisfed.org/title/5562/item/539905, accessed on April 19, 2024.
Federal Reserve Bank of Chicago. "June 29, 1938, Volume 21, Number 6," Business Conditions (Federal Reserve Bank of Chicago) (June 29, 1938). https://fraser.stlouisfed.org/title/5562/item/539905, accessed on April 19, 2024.