Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Operating Ratios of Member Banks, by Federal Reserve District," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "April 1967," Federal Reserve Bulletin (April 1967) : 166-166. https://fraser.stlouisfed.org/title/62/item/21388/toc/150918 , accessed on April 19, 2024.