Board of Governors of the Federal Reserve System (U.S.), 1935-. "Debits and Deposit Turnover at Commercial Banks," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1990," Annual Statistical Digest (November 1991) : 27-27. https://fraser.stlouisfed.org/title/7/item/23496/toc/252081 , accessed on April 23, 2024.