Board of Governors of the Federal Reserve System (U.S.), 1935-. "Demand Deposits, Debits, and Deposit Turnover, by Major Banking Group," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1981," Annual Statistical Digest (October 1982) : 33-33. https://fraser.stlouisfed.org/title/7/item/23508/toc/396153 , accessed on April 19, 2024.