Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of Citicorp to engage through subsidiary, Citicorp Futures Corporation, in executing and clearing options and options on futures" in Press Releases of the Board of Governors of the Federal Reserve System
(June 5, 1984).
https://fraser.stlouisfed.org/title/9237/item/696327, accessed on January 13, 2026.