Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Total Debt, by Type of Security," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "March 1964," Federal Reserve Bulletin (March 1964) : 90-90. https://fraser.stlouisfed.org/title/62/item/21351/toc/209853 , accessed on April 23, 2024.