Federal Reserve Bank of Philadelphia. "August 1956," Business Review (Federal Reserve Bank of Philadelphia) (August 1956). https://fraser.stlouisfed.org/title/5580/item/557334, accessed on May 1, 2024.
Federal Reserve Bank of Philadelphia. "August 1956," Business Review (Federal Reserve Bank of Philadelphia) (August 1956). https://fraser.stlouisfed.org/title/5580/item/557334, accessed on May 1, 2024.