Board of Governors of the Federal Reserve System (U.S.), 1935-. "Tax - Exempt Debt Securities and Loans, Unadjusted Net Flows," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "September 23, 1985 : Annual Revisions," Z.1 Financial Accounts of the United States (1985-09-23) : 44-44. https://fraser.stlouisfed.org/title/93/item/69123/toc/482427 , accessed on April 25, 2024.