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. "May 1939," Federal Reserve Bulletin (May 1939) : 79-79. https://fraser.stlouisfed.org/title/62/item/21013/toc/249134 , accessed on April 23, 2024.