Board of Governors of the Federal Reserve System (U.S.), 1935-. "February 22, 1971 (Seasonally Adjusted) : Revised Data for 1967-1970,"
Z.1 Financial Accounts of the United States
(1971-02-22).
https://fraser.stlouisfed.org/title/93/item/69095, accessed on October 19, 2024.