United States. Department of the Treasury. "Resignation of Robert W. Sparks, August 6, 1954," in United States. Department of the Treasury. "Volume 100," Press Releases of the United States Department of the Treasury (May 4, 1954 - August 31, 1954) : 409-413. https://fraser.stlouisfed.org/title/6111/item/586943/toc/536755 , accessed on May 13, 2024.