Board of Governors of the Federal Reserve System (U.S.), 1935-. "Electric Power Use by Industries, Not Seasonally Adjusted Indexes," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "October 16, 1987," G.12.3 Industrial Production (1987-10-16) : 19-19. https://fraser.stlouisfed.org/title/55/item/59724/toc/473898 , accessed on March 29, 2024.