Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 2, 1991," H.4.1 Factors Affecting Reserve Balances of Depository Institutions and Condition Statement of Federal Reserve Banks (1991-05-02). https://fraser.stlouisfed.org/title/83/item/66509, accessed on September 26, 2024.