Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Industry Groupings, Seasonally Adjusted," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "November 1963," Federal Reserve Bulletin (November 1963) : 89-89. https://fraser.stlouisfed.org/title/62/item/21347/toc/240528 , accessed on April 24, 2024.