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 15, 1988," G.12.3 Industrial Production (1988-01-15) : 11-11. https://fraser.stlouisfed.org/title/55/item/59778/toc/474245 , accessed on May 4, 2024.