Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Recent Payment Trends in the United States," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Compilation 2008," Federal Reserve Bulletin (2008) : 81-112. https://fraser.stlouisfed.org/title/62/item/20987/toc/148262 , accessed on April 30, 2024.