Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Insured Commercial Bank Income in 1977," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "June 1978," Federal Reserve Bulletin (June 1978) : 16-22. https://fraser.stlouisfed.org/title/62/item/20441/toc/347645 , accessed on April 24, 2024.