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 1948," Federal Reserve Bulletin (June 1948) : 87-87. https://fraser.stlouisfed.org/title/62/item/21162/toc/137375 , accessed on December 9, 2023.