United States. Department of the Treasury. "Helvering Tells Taxpayers To Use Table On Reverse Of Forms, August 26, 1943," in United States. Department of the Treasury. "Volume 48," Press Releases of the United States Department of the Treasury (August 10, 1943 - October 12, 1943) : 241-248. https://fraser.stlouisfed.org/title/6111/item/586891/toc/565915 , accessed on April 24, 2024.