Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industry Subtotals and Individual Series, Not Seasonally Adjusted," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "January 17, 1990," G.12.3 Industrial Production (1990-01-17) : 13-13. https://fraser.stlouisfed.org/title/55/item/59756/toc/450966 , accessed on May 4, 2024.