COMMISSIONER v. SULLIVAN. The Oyez Project at IIT Chicago-Kent College of Law. 27 April 2013. <http://www.oyez.org/cases/1950-1959/1957/1957_119>.
COMMISSIONER v. SULLIVAN, The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1950-1959/1957/1957_119 (last visited April 27, 2013).
"COMMISSIONER v. SULLIVAN," The Oyez Project at IIT Chicago-Kent College of Law, accessed April 27, 2013, http://www.oyez.org/cases/1950-1959/1957/1957_119.