Board of Governors of the Federal Reserve System (U.S.), 1935-. "Foreign Transactions in Securities," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1973-1977," Annual Statistical Digest (December 1978) : 258-263. https://fraser.stlouisfed.org/title/7/item/23504/toc/110163 , accessed on April 20, 2024.