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-. "May 13, 1983," G.12.3 Industrial Production (1983-05-13) : 18-18. https://fraser.stlouisfed.org/title/55/item/59667/toc/472587 , accessed on April 18, 2024.