Federal Reserve Bank of New York. "6067. Revisions of Treasury Department Circulars Nos. 21 and 92," Federal Reserve Bank of New York Circulars (November 28, 1967). https://fraser.stlouisfed.org/title/466/item/13801, accessed on April 24, 2024.
Federal Reserve Bank of New York. "6067. Revisions of Treasury Department Circulars Nos. 21 and 92," Federal Reserve Bank of New York Circulars (November 28, 1967). https://fraser.stlouisfed.org/title/466/item/13801, accessed on April 24, 2024.