Board of Governors of the Federal Reserve System (U.S.), 1935-. "Mutual Savings Banks, Seasonally Adjusted Annual Rates," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "November 29, 1977," Z.1 Financial Accounts of the United States (1977-11-29) : 30-30. https://fraser.stlouisfed.org/title/93/item/69086/toc/478191 , accessed on March 29, 2024.