Board of Governors of the Federal Reserve System (U.S.), 1935-. "Electric Power Use by Industries, Seasonally Adjusted Indexes," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "November 16, 1987," G.12.3 Industrial Production (1987-11-16) : 18-18. https://fraser.stlouisfed.org/title/55/item/59725/toc/473916 , accessed on April 19, 2024.