Federal Reserve Bank of Chicago. "March 1952," Business Conditions (Federal Reserve Bank of Chicago) (March 1952). https://fraser.stlouisfed.org/title/5562/item/540069, accessed on May 10, 2024.
Federal Reserve Bank of Chicago. "March 1952," Business Conditions (Federal Reserve Bank of Chicago) (March 1952). https://fraser.stlouisfed.org/title/5562/item/540069, accessed on May 10, 2024.