Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "April 21, 1938," H.4.1 Factors Affecting Reserve Balances of Depository Institutions and Condition Statement of Federal Reserve Banks (1938-04-21). https://fraser.stlouisfed.org/title/83/item/66850, accessed on September 20, 2024.