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 1972," Federal Reserve Bulletin (June 1972) : 190-190. https://fraser.stlouisfed.org/title/62/item/21451/toc/14514 , accessed on April 19, 2024.