United States. Department of the Treasury. "Treasury Bond Announcement, August 13, 1928," in United States. Department of the Treasury. "Volume 5," Press Releases of the United States Department of the Treasury (January 9, 1928 - December 20, 1928) : 191-192. https://fraser.stlouisfed.org/title/6111/item/586843/toc/557285 , accessed on April 19, 2024.