Federal Reserve Bank of New York. "$20 Counterfeit Federal Reserve Notes," Federal Reserve Bank of New York Circulars (February 17, 1972). https://fraser.stlouisfed.org/title/466/item/540702, accessed on March 31, 2023.
Federal Reserve Bank of New York. "$20 Counterfeit Federal Reserve Notes," Federal Reserve Bank of New York Circulars (February 17, 1972). https://fraser.stlouisfed.org/title/466/item/540702, accessed on March 31, 2023.