Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "U.S. Government Marketable and Convertible Securities Outstanding," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "December 1961," Federal Reserve Bulletin (December 1961) : 68-68. https://fraser.stlouisfed.org/title/62/item/21324/toc/265313 , accessed on April 19, 2024.