Board of Governors of the Federal Reserve System (U.S.), 1935-. "Direct and Indirect Sources of Funds to Credit Markets, Unadjusted Net Flows," 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) : 15-15. https://fraser.stlouisfed.org/title/93/item/69048/toc/475666 , accessed on May 13, 2024.