Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Reserve Requirements of Depository Institutions," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "April 1993," Federal Reserve Bulletin (April 1993) : 139-139. https://fraser.stlouisfed.org/title/62/item/20851/toc/133827 , accessed on September 22, 2023.