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, 1966," Budget of the United States Government (January 25, 1965) : 474-474. https://fraser.stlouisfed.org/title/54/item/19019/toc/108437 , accessed on March 19, 2024.