Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of Citicorp to engage de novo through Citicorp Services, Inc., in the issuance and sale of variably denominated payment instruments" in Press Releases of the Board of Governors of the Federal Reserve System
(November 28, 1984).
https://fraser.stlouisfed.org/title/9237/item/696470, accessed on January 15, 2026.