Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Mortgage Debt Outstanding on Nonfarm 1 to 4 Family Properties," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "November 1970," Federal Reserve Bulletin (November 1970) : 123-123. https://fraser.stlouisfed.org/title/62/item/21431/toc/330939 , accessed on March 28, 2024.