Board of Governors of the Federal Reserve System (U.S.), 1935-. "Farm Mortgages, Seasonally Adjusted Annual Rates," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "February 17, 1981," Z.1 Financial Accounts of the United States (1981-02-17) : 47-47. https://fraser.stlouisfed.org/title/93/item/69064/toc/480644 , accessed on April 24, 2024.