McClellan lets Lee retreat from Antietam. (2013). The History Channel website. Retrieved 9:14, May 19, 2013, from http://www.history.com/this-day-in-history/mcclellan-lets-lee-retreat-from-antietam.
McClellan lets Lee retreat from Antietam. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/mcclellan-lets-lee-retreat-from-antietam [Accessed 19 May 2013].
“McClellan lets Lee retreat from Antietam.” 2013. The History Channel website. May 19 2013, 9:14 http://www.history.com/this-day-in-history/mcclellan-lets-lee-retreat-from-antietam.
“McClellan lets Lee retreat from Antietam,” The History Channel website, 2013, http://www.history.com/this-day-in-history/mcclellan-lets-lee-retreat-from-antietam [accessed May 19, 2013].
“McClellan lets Lee retreat from Antietam,” The History Channel website, http://www.history.com/this-day-in-history/mcclellan-lets-lee-retreat-from-antietam (accessed May 19, 2013).
McClellan lets Lee retreat from Antietam [Internet]. The History Channel website; 2013 [cited 2013 May 19] Available from: http://www.history.com/this-day-in-history/mcclellan-lets-lee-retreat-from-antietam.
McClellan lets Lee retreat from Antietam, http://www.history.com/this-day-in-history/mcclellan-lets-lee-retreat-from-antietam (last visited May 19, 2013).
McClellan lets Lee retreat from Antietam. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/mcclellan-lets-lee-retreat-from-antietam. Accessed May 19, 2013.