Appendix D: Estimated Tax Liability and Effective Average Rates Attributable to Income Other Than Wages and Salaries, 1929–64

Employee Compensation under the Income Tax (NBER, 1968), https://www.nber.org/books-and-chapters/employee-compensation-under-income-tax/appendix-d-estimated-tax-liability-and-effective-average-rates-attributable-income-other-wages-and.