Federal Reserve Bank of New York. "7835. Reappearance of Chain Letters Involving United States Savings Bonds," Federal Reserve Bank of New York Circulars (March 12, 1976). https://fraser.stlouisfed.org/title/466/item/496104, accessed on May 7, 2024.
Federal Reserve Bank of New York. "7835. Reappearance of Chain Letters Involving United States Savings Bonds," Federal Reserve Bank of New York Circulars (March 12, 1976). https://fraser.stlouisfed.org/title/466/item/496104, accessed on May 7, 2024.