United States. Department of the Treasury. "Tax Treatment Of Family Income, June 18, 1947," in United States. Department of the Treasury. "Volume 67," Press Releases of the United States Department of the Treasury (June 5, 1947 - August 4, 1947) : 50-114. https://fraser.stlouisfed.org/title/6111/item/586910/toc/562341 , accessed on June 25, 2024.