Board of Governors of the Federal Reserve System (U.S.), 1935-. "Reserve Requirements of Depository Institutions," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1987," Annual Statistical Digest (October 1988) : 26-26. https://fraser.stlouisfed.org/title/7/item/23493/toc/193433 , accessed on May 9, 2024.