Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Revision of Bank Credit Series," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "June 1964," Federal Reserve Bulletin (June 1964) : 25-29. https://fraser.stlouisfed.org/title/62/item/21354/toc/39049 , accessed on April 26, 2024.