Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Number of Banks, Banking Offices, Banks Operating Branches, etc.," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "June 1931," Federal Reserve Bulletin (June 1931) : 15-15. https://fraser.stlouisfed.org/title/62/item/20714/toc/213571 , accessed on April 19, 2024.