Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Mortgage Debt Outstanding," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "November 1989," Federal Reserve Bulletin (November 1989) : 83-83. https://fraser.stlouisfed.org/title/62/item/20810/toc/82336 , accessed on April 26, 2024.