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. "March 1971," Federal Reserve Bulletin (March 1971) : 208-208. https://fraser.stlouisfed.org/title/62/item/21435/toc/47582 , accessed on March 29, 2024.