Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Mortgage Debt Outstanding on Residential Properties," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 1973," Federal Reserve Bulletin (May 1973) : 115-115. https://fraser.stlouisfed.org/title/62/item/21461/toc/330023 , accessed on July 8, 2024.