Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Aggregate Reserves of Depository Institutions and Monetary Base," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 1991," Federal Reserve Bulletin (May 1991) : 101-101. https://fraser.stlouisfed.org/title/62/item/20828/toc/127904 , accessed on June 23, 2024.