Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industry Subtotals and Individual Series, Seasonally Adjusted," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "December 16, 1980," G.12.3 Industrial Production (1980-12-16) : 11-11. https://fraser.stlouisfed.org/title/55/item/59639/toc/472102 , accessed on April 26, 2024.