United States. Department of the Treasury. "Statement by Commissioner Helvering on Advertising, September 29, 1942," in United States. Department of the Treasury. "Volume 43," Press Releases of the United States Department of the Treasury (August 31, 1942 - November 9, 1942) : 401-405. https://fraser.stlouisfed.org/title/6111/item/586886/toc/561328 , accessed on June 25, 2024.