Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of Security BancShares of Montana, Inc., for Rimrock Bank of Billings" in Press Releases of the Board of Governors of the Federal Reserve System
(February 21, 1979).
https://fraser.stlouisfed.org/title/9237/item/694571, accessed on January 24, 2026.