Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of First Citizens Banc Corp. to acquire Castalia Banking Company. Approval of merger of Citizens Interim Bank with Castalia Banking Company and to establish a branch" in Press Releases of the Board of Governors of the Federal Reserve System
(March 19, 1990).
https://fraser.stlouisfed.org/title/9237/item/691707, accessed on January 16, 2026.