Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Gross Public Debt of U.S. Treasury - Type and Ownership," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "September 1987," Federal Reserve Bulletin (September 1987) : 106-106. https://fraser.stlouisfed.org/title/62/item/20784/toc/381491 , accessed on April 25, 2024.