Board of Governors of the Federal Reserve System (U.S.), 1935-. "Index of weighted-average value of U.S. dollar," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1974-1978," Annual Statistical Digest (January 1980) : 258-258. https://fraser.stlouisfed.org/title/7/item/23505/toc/133599 , accessed on March 29, 2024.