Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of applications of NBD Bancorp, Inc., and subsidiary, NBD Northern Corporation, to merger NBD Northern Corporation with State National Corporation" in Press Releases of the Board of Governors of the Federal Reserve System
(November 13, 1987).
https://fraser.stlouisfed.org/title/9237/item/691318, accessed on January 18, 2026.