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-. "June 13, 1986," G.12.3 Industrial Production (1986-06-13) : 16-16. https://fraser.stlouisfed.org/title/55/item/59706/toc/473293 , accessed on March 28, 2024.