Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Market Groupings, Seasonally Adjusted," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "January 1963," Federal Reserve Bulletin (January 1963) : 70-70. https://fraser.stlouisfed.org/title/62/item/21337/toc/215904 , accessed on April 16, 2024.