Board of Governors of the Federal Reserve System (U.S.), 1935-. "Reserves of Depository Institutions and Reserve Bank Credit," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1990," Annual Statistical Digest (November 1991) : 12-19. https://fraser.stlouisfed.org/title/7/item/23496/toc/252074 , accessed on April 19, 2024.