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-. "June 15, 1988," G.12.3 Industrial Production (1988-06-15) : 19-19. https://fraser.stlouisfed.org/title/55/item/59736/toc/474337 , accessed on March 29, 2024.