Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Merchandise Exports and Imports," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "July 1972," Federal Reserve Bulletin (July 1972) : 160-160. https://fraser.stlouisfed.org/title/62/item/21449/toc/8417 , accessed on April 19, 2024.