Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Earnings Ratios of All Member Banks, by Federal Reserve Districts," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 1961," Federal Reserve Bulletin (May 1961) : 100-100. https://fraser.stlouisfed.org/title/62/item/21317/toc/52881 , accessed on April 28, 2024.