Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Annual Report of the National Bank of Switzerland," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "April 1929," Federal Reserve Bulletin (April 1929) : 28-34. https://fraser.stlouisfed.org/title/62/item/20688/toc/255422 , accessed on March 28, 2024.