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. "May 1963," Federal Reserve Bulletin (May 1963) : 116-116. https://fraser.stlouisfed.org/title/62/item/21341/toc/65455 , accessed on May 4, 2024.