Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Earnings of Federal Reserve Banks, by Sources," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "1928," Annual Report of the Board of Governors of the Federal Reserve System (1928) : 86-86. https://fraser.stlouisfed.org/title/117/item/2486/toc/97575 , accessed on March 29, 2024.