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 13, 1981," G.12.3 Industrial Production (1981-11-13) : 18-18. https://fraser.stlouisfed.org/title/55/item/59649/toc/472260 , accessed on March 28, 2024.