Board of Governors of the Federal Reserve System (U.S.), 1935-. "Market Groupings, Not Seasonally Adjusted," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "May 14, 1982," G.12.3 Industrial Production (1982-05-14) : 5-5. https://fraser.stlouisfed.org/title/55/item/59655/toc/472377 , accessed on April 25, 2024.