United States. Department of the Treasury. "Results of FNMA subscription $750 million of 4 7/8% ML, October 23, 1957," in United States. Department of the Treasury. "Volume 111," Press Releases of the United States Department of the Treasury (July 30, 1957 - December 30, 1957) : 276-278. https://fraser.stlouisfed.org/title/6111/item/586954/toc/537500 , accessed on June 25, 2024.