Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Purchases and Sales by Foreigners of Long-Term Securities, by Type," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "June 1957," Federal Reserve Bulletin (June 1957) : 114-114. https://fraser.stlouisfed.org/title/62/item/21270/toc/427460 , accessed on April 19, 2024.