Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Market Groupings, Not Seasonally Adjusted," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "October 1964," Federal Reserve Bulletin (October 1964) : 92-92. https://fraser.stlouisfed.org/title/62/item/21358/toc/121928 , accessed on April 26, 2024.