St. John's Law Review
"Excise Tax--Constitutional Law--Power of State to Tax Income from Copyright (Educational Films Corporation of America v. Hamilton Ward, Atty-Gen. of N.Y., 51 S. Ct. 170 (1931)),"
St. John's Law Review: Vol. 5
, Article 35.
Available at: http://scholarship.law.stjohns.edu/lawreview/vol5/iss2/35