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. "May 1969," Federal Reserve Bulletin (May 1969) : 173-173. https://fraser.stlouisfed.org/title/62/item/21413/toc/186723 , accessed on March 28, 2024.