Federal Reserve Bank of Cleveland. "December 1956: Supplement," Economic Review (Federal Reserve Bank of Cleveland) (December 1956). https://fraser.stlouisfed.org/title/1328/item/4253, accessed on April 25, 2024.
Federal Reserve Bank of Cleveland. "December 1956: Supplement," Economic Review (Federal Reserve Bank of Cleveland) (December 1956). https://fraser.stlouisfed.org/title/1328/item/4253, accessed on April 25, 2024.