Board of Governors of the Federal Reserve System (U.S.), 1935-. "Market Groupings, Not Seasonally Adjusted," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "July 16, 1973," G.12.3 Industrial Production (1973-07-16) : 8-8. https://fraser.stlouisfed.org/title/55/item/59759/toc/471427 , accessed on March 29, 2024.