Board of Governors of the Federal Reserve System (U.S.), 1935-. "Installment Credit - Total Outstanding," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1980-1989," Annual Statistical Digest (March 1991) : 249-253. https://fraser.stlouisfed.org/title/7/item/23495/toc/414300 , accessed on March 28, 2024.