Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Credit-Card and Check-Credit Plans at Commercial Banks," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "September 1973," Federal Reserve Bulletin (September 1973) : 39-46. https://fraser.stlouisfed.org/title/62/item/21466/toc/8286 , accessed on April 24, 2024.