COMMISSIONER v. SULLIVAN. The Oyez Project at IIT Chicago-Kent College of Law. 17 May 2012. <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 May 17, 2012).
"COMMISSIONER v. SULLIVAN," The Oyez Project at IIT Chicago-Kent College of Law, accessed May 17, 2012, http://www.oyez.org/cases/1950-1959/1957/1957_119.