Board of Governors of the Federal Reserve System (U.S.), 1935-. "Installment Credit - Total Outstanding and Net Change," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1973-1977," Annual Statistical Digest (December 1978) : 180-186. https://fraser.stlouisfed.org/title/7/item/23504/toc/110146 , accessed on April 19, 2024.