Sommerfeld, Ray M. An introduction to taxation / Ray M. Sommerfeld, Hershel M. Anderson, Horace R. Brock. - 1981 ed. - New York : Harcourt Brace Jovanovich, 1980. - 1 v. (various pagings). ISBN: 0155463136 Subjects--Topical Terms: Taxation--Law.--United StatesIncome tax--Law.--United States