Board of Governors of the Federal Reserve System (U.S.), 1935-. "Information Status for Preliminary Estimates," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "August 31, 1983 : Annual Revisions," Z.1 Financial Accounts of the United States (1983-08-31) : 8-10. https://fraser.stlouisfed.org/title/93/item/69073/toc/481718 , accessed on April 25, 2024.