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. "May 1970," Federal Reserve Bulletin (May 1970) : 180-180. https://fraser.stlouisfed.org/title/62/item/21425/toc/136559 , accessed on April 19, 2024.