Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of National Detroit Corporation for NDC Insurance Company and to engage de novo in insurance underwriting" in Press Releases of the Board of Governors of the Federal Reserve System
(March 24, 1976).
https://fraser.stlouisfed.org/title/9237/item/693520, accessed on January 13, 2026.