Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "United States Government Marketable and Convertible Securities Outstanding," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "October 1956," Federal Reserve Bulletin (October 1956) : 81-81. https://fraser.stlouisfed.org/title/62/item/21262/toc/278508 , accessed on May 10, 2024.