Board of Governors of the Federal Reserve System (U.S.), 1935-. "Reserves, Money Stock, Liquid Assets, and Debt Measures," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1987," Annual Statistical Digest (October 1988) : 11-13. https://fraser.stlouisfed.org/title/7/item/23493/toc/193428 , accessed on May 5, 2024.