Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of Northern Trust Corporation to engage de novo through subsidiary, Northern Futures Corporation, in the execution and clearance of futures contracts" in Press Releases of the Board of Governors of the Federal Reserve System
(March 3, 1988).
https://fraser.stlouisfed.org/title/9237/item/691376, accessed on January 16, 2026.