COMMISSIONER v. HANSEN. The Oyez Project at IIT Chicago-Kent College of Law. 17 May 2012. <http://www.oyez.org/cases/1950-1959/1958/1958_380>.
COMMISSIONER v. HANSEN, The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1950-1959/1958/1958_380 (last visited May 17, 2012).
"COMMISSIONER v. HANSEN," The Oyez Project at IIT Chicago-Kent College of Law, accessed May 17, 2012, http://www.oyez.org/cases/1950-1959/1958/1958_380.