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. "January 1997," Federal Reserve Bulletin (January 1997) : 104-104. https://fraser.stlouisfed.org/title/62/item/20896/toc/79786 , accessed on April 24, 2024.