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-. "January 17, 1977," G.12.3 Industrial Production (1977-01-17) : 14-14. https://fraser.stlouisfed.org/title/55/item/59522/toc/470149 , accessed on April 15, 2024.