Federal Reserve Bank of Philadelphia. "January 1, 1921," Business Review (Federal Reserve Bank of Philadelphia) (January 1, 1921). https://fraser.stlouisfed.org/title/5580/item/557812, accessed on April 18, 2024.
Federal Reserve Bank of Philadelphia. "January 1, 1921," Business Review (Federal Reserve Bank of Philadelphia) (January 1, 1921). https://fraser.stlouisfed.org/title/5580/item/557812, accessed on April 18, 2024.