Halleck takes command of the Union army. (2013). The History Channel website. Retrieved 5:26, May 19, 2013, from http://www.history.com/this-day-in-history/halleck-takes-command-of-the-union-army.
Halleck takes command of the Union army. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/halleck-takes-command-of-the-union-army [Accessed 19 May 2013].
“Halleck takes command of the Union army.” 2013. The History Channel website. May 19 2013, 5:26 http://www.history.com/this-day-in-history/halleck-takes-command-of-the-union-army.
“Halleck takes command of the Union army,” The History Channel website, 2013, http://www.history.com/this-day-in-history/halleck-takes-command-of-the-union-army [accessed May 19, 2013].
“Halleck takes command of the Union army,” The History Channel website, http://www.history.com/this-day-in-history/halleck-takes-command-of-the-union-army (accessed May 19, 2013).
Halleck takes command of the Union army [Internet]. The History Channel website; 2013 [cited 2013 May 19] Available from: http://www.history.com/this-day-in-history/halleck-takes-command-of-the-union-army.
Halleck takes command of the Union army, http://www.history.com/this-day-in-history/halleck-takes-command-of-the-union-army (last visited May 19, 2013).
Halleck takes command of the Union army. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/halleck-takes-command-of-the-union-army. Accessed May 19, 2013.