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. "February 1967," Federal Reserve Bulletin (February 1967) : 139-139. https://fraser.stlouisfed.org/title/62/item/21386/toc/150203 , accessed on April 25, 2024.