Board of Governors of the Federal Reserve System (U.S.), 1935-. "March 31, 1978," G.5 Foreign Exchange Rates (March 31, 1978). https://fraser.stlouisfed.org/title/1281/item/528964, accessed on May 25, 2022.
public domain
Board of Governors of the Federal Reserve System (U.S.), 1935-. "March 31, 1978," G.5 Foreign Exchange Rates (March 31, 1978). https://fraser.stlouisfed.org/title/1281/item/528964, accessed on May 25, 2022.
public domain