Federal Reserve Bank of Philadelphia. "May 1, 1939," Business Review (Federal Reserve Bank of Philadelphia) (May 1, 1939). https://fraser.stlouisfed.org/title/5580/item/557127, accessed on April 18, 2024.
Federal Reserve Bank of Philadelphia. "May 1, 1939," Business Review (Federal Reserve Bank of Philadelphia) (May 1, 1939). https://fraser.stlouisfed.org/title/5580/item/557127, accessed on April 18, 2024.