Board of Governors of the Federal Reserve System (U.S.), 1935-. "Treasury Currency and SDR Certificates, Seasonally Adjusted Annual Rates," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "March 10, 1989," Z.1 Financial Accounts of the United States (1989-03-10) : 46-46. https://fraser.stlouisfed.org/title/93/item/69113/toc/476267 , accessed on May 11, 2024.