Board of Governors of the Federal Reserve System (U.S.), 1935-. "Market Groupings, Seasonally Adjusted," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "November 14, 1975," G.12.3 Industrial Production (1975-11-14) : 3-3. https://fraser.stlouisfed.org/title/55/item/59535/toc/470027 , accessed on May 2, 2024.