Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of Great Lakes Bancorp, Inc., for Industrial State Bank and Trust Company, Owosso Savings Bank, and Alpena Savings Bank" in Press Releases of the Board of Governors of the Federal Reserve System
(August 14, 1973).
https://fraser.stlouisfed.org/title/9237/item/699262, accessed on January 15, 2026.