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 16, 1987," G.12.3 Industrial Production (1987-10-16) : 13-13. https://fraser.stlouisfed.org/title/55/item/59724/toc/473901 , accessed on March 28, 2024.