Secretary Humphrey's letter to Chairman Jere Cooper on new tax code, March 3, 1955
Humphrey, George M. (George Magoffin), 1890-1970. "Secretary Humphrey's letter to Chairman Jere Cooper on new tax code, March 3, 1955," in United States. Department of the Treasury. "Volume 102," Press Releases of the United States Department of the Treasury (January 4, 1955 - March 31, 1955) : 322-324. https://fraser.stlouisfed.org/title/6111/item/586945/toc/536830 , accessed on May 25, 2022.