Board of Governors of the Federal Reserve System (U.S.), 1935-. "Taxes Payable, Annual Flows, Annual," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "January 31, 1992 : Annual Revisions," Z.1 Financial Accounts of the United States (1992-01-31) : 67-67. https://fraser.stlouisfed.org/title/93/item/69077/toc/468570 , accessed on April 18, 2024.