United States. Department of the Treasury. "Statement Concerning the Revenue Bill by President Coolidge, June 2, 1924," in United States. Department of the Treasury. "Volume 3A," Press Releases of the United States Department of the Treasury (January 5, 1924 - December 7, 1925) : 113-116. https://fraser.stlouisfed.org/title/6111/item/586840/toc/558538 , accessed on May 18, 2024.