Siege of Leningrad is lifted. (2013). The History Channel website. Retrieved 8:13, June 19, 2013, from http://www.history.com/this-day-in-history/siege-of-leningrad-is-lifted.
Siege of Leningrad is lifted. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/siege-of-leningrad-is-lifted [Accessed 19 Jun 2013].
“Siege of Leningrad is lifted.” 2013. The History Channel website. Jun 19 2013, 8:13 http://www.history.com/this-day-in-history/siege-of-leningrad-is-lifted.
“Siege of Leningrad is lifted,” The History Channel website, 2013, http://www.history.com/this-day-in-history/siege-of-leningrad-is-lifted [accessed Jun 19, 2013].
“Siege of Leningrad is lifted,” The History Channel website, http://www.history.com/this-day-in-history/siege-of-leningrad-is-lifted (accessed Jun 19, 2013).
Siege of Leningrad is lifted [Internet]. The History Channel website; 2013 [cited 2013 Jun 19] Available from: http://www.history.com/this-day-in-history/siege-of-leningrad-is-lifted.
Siege of Leningrad is lifted, http://www.history.com/this-day-in-history/siege-of-leningrad-is-lifted (last visited Jun 19, 2013).
Siege of Leningrad is lifted. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/siege-of-leningrad-is-lifted. Accessed Jun 19, 2013.