Board of Governors of the Federal Reserve System (U.S.), 1935-. "Proprietors' Equity in Noncorporate Business, Unadjusted Net Flows, Millions," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "September 25, 1990 : Annual Revisions," Z.1 Financial Accounts of the United States (1990-09-25) : 65-65. https://fraser.stlouisfed.org/title/93/item/69048/toc/475681 , accessed on April 18, 2024.