Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Industry Groupings," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "November 1971," Federal Reserve Bulletin (November 1971) : 149-149. https://fraser.stlouisfed.org/title/62/item/21443/toc/148465 , accessed on June 24, 2024.