Supreme Court rules on communist teachers. (2013). The History Channel website. Retrieved 3:02, May 23, 2013, from http://www.history.com/this-day-in-history/supreme-court-rules-on-communist-teachers.
Supreme Court rules on communist teachers. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/supreme-court-rules-on-communist-teachers [Accessed 23 May 2013].
“Supreme Court rules on communist teachers.” 2013. The History Channel website. May 23 2013, 3:02 http://www.history.com/this-day-in-history/supreme-court-rules-on-communist-teachers.
“Supreme Court rules on communist teachers,” The History Channel website, 2013, http://www.history.com/this-day-in-history/supreme-court-rules-on-communist-teachers [accessed May 23, 2013].
“Supreme Court rules on communist teachers,” The History Channel website, http://www.history.com/this-day-in-history/supreme-court-rules-on-communist-teachers (accessed May 23, 2013).
Supreme Court rules on communist teachers [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/supreme-court-rules-on-communist-teachers.
Supreme Court rules on communist teachers, http://www.history.com/this-day-in-history/supreme-court-rules-on-communist-teachers (last visited May 23, 2013).
Supreme Court rules on communist teachers. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/supreme-court-rules-on-communist-teachers. Accessed May 23, 2013.