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-. "October 14, 1988," G.12.3 Industrial Production (1988-10-14) : 9-9. https://fraser.stlouisfed.org/title/55/item/59741/toc/474416 , accessed on April 19, 2024.