Paul, Randolph E., 1890-1956 and United States. Department of the Treasury. Division of Tax Research. Comments on the Ruml Pay-As-You-Go Plan for the Individual Income Tax, Box 26, Folder 1, Item 3, Marriner S. Eccles Papers. https://fraser.stlouisfed.org/archival/1343/item/460865, accessed on March 25, 2025.