U.S. SAVINGS BONDS ISSUED and REDEEMED THROUGH January 31, 1971, February 9, 1971
United States. Department of the Treasury. "U.S. SAVINGS BONDS ISSUED and REDEEMED THROUGH January 31, 1971, February 9, 1971," in United States. Department of the Treasury. "Volume 172," Press Releases of the United States Department of the Treasury (February 1, 1971 - March 31, 1971) : 59-97. https://fraser.stlouisfed.org/title/6111/item/587015/toc/542110 , accessed on April 25, 2024.