Board of Governors of the Federal Reserve System (U.S.), 1935-. "Monetary and credit aggregates and interest rates," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1970-1979," Annual Statistical Digest (March 1981) : 11-17. https://fraser.stlouisfed.org/title/7/item/23506/toc/190685 , accessed on May 13, 2024.