Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Ownership of United States Government Marketable Securities, by Maturity," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "February 1967," Federal Reserve Bulletin (February 1967) : 95-95. https://fraser.stlouisfed.org/title/62/item/21386/toc/150147 , accessed on April 24, 2024.