United States. Department of the Treasury. "FNMA will offer subscription $750 million of 4 7/8% ML, October 17, 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) : 265-267. https://fraser.stlouisfed.org/title/6111/item/586954/toc/537496 , accessed on June 25, 2024.