Greensboro Sit-In and the Sit-In Movement. (2013). The History Channel website. Retrieved 7:57, May 24, 2013, from http://www.history.com/topics/greensboro-sit-in.
Greensboro Sit-In and the Sit-In Movement. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/topics/greensboro-sit-in [Accessed 24 May 2013].
“Greensboro Sit-In and the Sit-In Movement.” 2013. The History Channel website. May 24 2013, 7:57 http://www.history.com/topics/greensboro-sit-in.
“Greensboro Sit-In and the Sit-In Movement,” The History Channel website, 2013, http://www.history.com/topics/greensboro-sit-in [accessed May 24, 2013].
“Greensboro Sit-In and the Sit-In Movement,” The History Channel website, http://www.history.com/topics/greensboro-sit-in (accessed May 24, 2013).
Greensboro Sit-In and the Sit-In Movement [Internet]. The History Channel website; 2013 [cited 2013 May 24] Available from: http://www.history.com/topics/greensboro-sit-in.
Greensboro Sit-In and the Sit-In Movement, http://www.history.com/topics/greensboro-sit-in (last visited May 24, 2013).
Greensboro Sit-In and the Sit-In Movement. The History Channel website. 2013. Available at: http://www.history.com/topics/greensboro-sit-in. Accessed May 24, 2013.