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. "September 1962," Federal Reserve Bulletin (September 1962) : 111-111. https://fraser.stlouisfed.org/title/62/item/21333/toc/112237 , accessed on March 28, 2024.