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 1962," Federal Reserve Bulletin (January 1962) : 87-87. https://fraser.stlouisfed.org/title/62/item/21325/toc/380189 , accessed on May 13, 2024.