Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Revision of Money Supply Series," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "September 1966," Federal Reserve Bulletin (September 1966) : 27-39. https://fraser.stlouisfed.org/title/62/item/21381/toc/261840 , accessed on May 8, 2024.