United States. Bureau of the Budget and United States. Office of Management and Budget. "Summary of Foreign Currency Transactions - U.S. Uses," in United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year Ending June 30, 1965," Budget of the United States Government (January 21, 1964) : 439-439. https://fraser.stlouisfed.org/title/54/item/19018/toc/235118 , accessed on April 24, 2024.