Board of Governors of the Federal Reserve System (U.S.), 1935-. "Treasury Currency and SDR Certificates, Unadjusted Net Flows," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "May 25, 1982," Z.1 Financial Accounts of the United States (1982-05-25) : 36-36. https://fraser.stlouisfed.org/title/93/item/69074/toc/481416 , accessed on March 28, 2024.