Board of Governors of the Federal Reserve System (U.S.), 1935-. "Banks and Branches - Number in Operation, by States," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1970-1979," Annual Statistical Digest (March 1981) : 476-495. https://fraser.stlouisfed.org/title/7/item/23506/toc/190753 , accessed on April 16, 2024.