Board of Governors of the Federal Reserve System (U.S.), 1935-. "Interim rule amendment to Regulation DD on disclosure of annual percentage yield (APY) : Attachment 1" in Press Releases of the Board of Governors of the Federal Reserve System
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https://fraser.stlouisfed.org/title/9237/item/674607/content/pdf/frsbog_pr_19980727-1, accessed on April 14, 2026.