Union forces capture Petersburg line. (2013). The History Channel website. Retrieved 4:39, May 25, 2013, from http://www.history.com/this-day-in-history/union-captures-petersburg-line-and-general-hill-is-killed.
Union forces capture Petersburg line. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/union-captures-petersburg-line-and-general-hill-is-killed [Accessed 25 May 2013].
“Union forces capture Petersburg line.” 2013. The History Channel website. May 25 2013, 4:39 http://www.history.com/this-day-in-history/union-captures-petersburg-line-and-general-hill-is-killed.
“Union forces capture Petersburg line,” The History Channel website, 2013, http://www.history.com/this-day-in-history/union-captures-petersburg-line-and-general-hill-is-killed [accessed May 25, 2013].
“Union forces capture Petersburg line,” The History Channel website, http://www.history.com/this-day-in-history/union-captures-petersburg-line-and-general-hill-is-killed (accessed May 25, 2013).
Union forces capture Petersburg line [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/union-captures-petersburg-line-and-general-hill-is-killed.
Union forces capture Petersburg line, http://www.history.com/this-day-in-history/union-captures-petersburg-line-and-general-hill-is-killed (last visited May 25, 2013).
Union forces capture Petersburg line. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/union-captures-petersburg-line-and-general-hill-is-killed. Accessed May 25, 2013.