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-. "1987," Annual Statistical Digest (October 1988) : 185-186. https://fraser.stlouisfed.org/title/7/item/23493/toc/193498 , accessed on April 23, 2024.