Federal Reserve Bank of Philadelphia. "April 1, 1931," Business Review (Federal Reserve Bank of Philadelphia) (April 1, 1931). https://fraser.stlouisfed.org/title/5580/item/557030, accessed on March 29, 2024.
Federal Reserve Bank of Philadelphia. "April 1, 1931," Business Review (Federal Reserve Bank of Philadelphia) (April 1, 1931). https://fraser.stlouisfed.org/title/5580/item/557030, accessed on March 29, 2024.