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. "July 1963," Federal Reserve Bulletin (July 1963) : 116-116. https://fraser.stlouisfed.org/title/62/item/21343/toc/319457 , accessed on April 23, 2024.