Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "September 15, 1918," H.4.1 Factors Affecting Reserve Balances of Depository Institutions and Condition Statement of Federal Reserve Banks (1918-09-15). https://fraser.stlouisfed.org/title/83/item/66504, accessed on January 23, 2025.