Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Federal Reserve Holdings of U.S. Government Securities," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "1967," Annual Report of the Board of Governors of the Federal Reserve System (1967) : 358-359. https://fraser.stlouisfed.org/title/117/item/2422/toc/61373 , accessed on April 18, 2024.