Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "United States Government Marketable Public Securities Outstanding," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "June 1950," Federal Reserve Bulletin (June 1950) : 90-90. https://fraser.stlouisfed.org/title/62/item/21186/toc/257283 , accessed on March 29, 2024.