Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Reserve Requirements of Member Banks," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "April 1968," Federal Reserve Bulletin (April 1968) : 69-69. https://fraser.stlouisfed.org/title/62/item/21400/toc/419297 , accessed on March 29, 2024.