Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Industry Groupings, Not 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) : 91-91. https://fraser.stlouisfed.org/title/62/item/21347/toc/240530 , accessed on March 28, 2024.