Board of Governors of the Federal Reserve System (U.S.), 1935-. "Total Net Purchases, Unadjusted Net Flows," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "May 19, 1981," Z.1 Financial Accounts of the United States (1981-05-19) : 39-39. https://fraser.stlouisfed.org/title/93/item/69129/toc/480767 , accessed on April 19, 2024.