Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industrial Electric Power Use - Seasonally Adjusted Indexes," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "November 15, 1976," G.12.3 Industrial Production (1976-11-15) : 14-15. https://fraser.stlouisfed.org/title/55/item/59600/toc/470130 , accessed on April 19, 2024.