Johnson signs Voting Rights Act. (2013). The History Channel website. Retrieved 4:57, May 23, 2013, from http://www.history.com/this-day-in-history/johnson-signs-voting-rights-act.
Johnson signs Voting Rights Act. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/johnson-signs-voting-rights-act [Accessed 23 May 2013].
“Johnson signs Voting Rights Act.” 2013. The History Channel website. May 23 2013, 4:57 http://www.history.com/this-day-in-history/johnson-signs-voting-rights-act.
“Johnson signs Voting Rights Act,” The History Channel website, 2013, http://www.history.com/this-day-in-history/johnson-signs-voting-rights-act [accessed May 23, 2013].
“Johnson signs Voting Rights Act,” The History Channel website, http://www.history.com/this-day-in-history/johnson-signs-voting-rights-act (accessed May 23, 2013).
Johnson signs Voting Rights Act [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/johnson-signs-voting-rights-act.
Johnson signs Voting Rights Act, http://www.history.com/this-day-in-history/johnson-signs-voting-rights-act (last visited May 23, 2013).
Johnson signs Voting Rights Act. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/johnson-signs-voting-rights-act. Accessed May 23, 2013.