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-. "1970-1979," Annual Statistical Digest (March 1981) : 67-70. https://fraser.stlouisfed.org/title/7/item/23506/toc/190695 , accessed on April 26, 2024.