Board of Governors of the Federal Reserve System (U.S.), 1935-. "Commercial Paper and Bankers' Dollar Acceptances Outstanding," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1988," Annual Statistical Digest (November 1989) : 66-66. https://fraser.stlouisfed.org/title/7/item/23494/toc/426457 , accessed on April 25, 2024.