Federal Reserve Bank of Philadelphia. "April 1, 1938," Business Review (Federal Reserve Bank of Philadelphia) (April 1, 1938). https://fraser.stlouisfed.org/title/5580/item/557114, accessed on May 9, 2024.
Federal Reserve Bank of Philadelphia. "April 1, 1938," Business Review (Federal Reserve Bank of Philadelphia) (April 1, 1938). https://fraser.stlouisfed.org/title/5580/item/557114, accessed on May 9, 2024.