Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of First Chicago Corporation to acquire through subsidiary, First Chicago Acquisition Corporation, First United Financial Services" in Press Releases of the Board of Governors of the Federal Reserve System
(August 3, 1987).
https://fraser.stlouisfed.org/title/9237/item/691261, accessed on January 17, 2026.