BLACK v. AMEN. The Oyez Project at IIT Chicago-Kent College of Law. 16 May 2012. <http://www.oyez.org/cases/1950-1959/1957/1957_13>.
BLACK v. AMEN, The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1950-1959/1957/1957_13 (last visited May 16, 2012).
"BLACK v. AMEN," The Oyez Project at IIT Chicago-Kent College of Law, accessed May 16, 2012, http://www.oyez.org/cases/1950-1959/1957/1957_13.