United States. Department of the Treasury. "Releasing New Steel-Zinc Penny, February 27, 1943," in United States. Department of the Treasury. "Volume 45," Press Releases of the United States Department of the Treasury (January 15, 1943 - April 5, 1943) : 303-304. https://fraser.stlouisfed.org/title/6111/item/586888/toc/561531 , accessed on June 28, 2024.