Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "February 18, 1971," H.4.1 Factors Affecting Reserve Balances of Depository Institutions and Condition Statement of Federal Reserve Banks (1971-02-18). https://fraser.stlouisfed.org/title/83/item/65279, accessed on July 31, 2024.