Board of Governors of the Federal Reserve System (U.S.), 1935-. "July 15, 1966," G.12.3 Industrial Production (1966-07-15). https://fraser.stlouisfed.org/title/55/item/59579, accessed on April 24, 2024.
Board of Governors of the Federal Reserve System (U.S.), 1935-. "July 15, 1966," G.12.3 Industrial Production (1966-07-15). https://fraser.stlouisfed.org/title/55/item/59579, accessed on April 24, 2024.