St. Petersburg founded by Peter the Great. (2013). The History Channel website. Retrieved 2:34, May 23, 2013, from http://www.history.com/this-day-in-history/st-petersburg-founded-by-peter-the-great.
St. Petersburg founded by Peter the Great. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/st-petersburg-founded-by-peter-the-great [Accessed 23 May 2013].
“St. Petersburg founded by Peter the Great.” 2013. The History Channel website. May 23 2013, 2:34 http://www.history.com/this-day-in-history/st-petersburg-founded-by-peter-the-great.
“St. Petersburg founded by Peter the Great,” The History Channel website, 2013, http://www.history.com/this-day-in-history/st-petersburg-founded-by-peter-the-great [accessed May 23, 2013].
“St. Petersburg founded by Peter the Great,” The History Channel website, http://www.history.com/this-day-in-history/st-petersburg-founded-by-peter-the-great (accessed May 23, 2013).
St. Petersburg founded by Peter the Great [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/st-petersburg-founded-by-peter-the-great.
St. Petersburg founded by Peter the Great, http://www.history.com/this-day-in-history/st-petersburg-founded-by-peter-the-great (last visited May 23, 2013).
St. Petersburg founded by Peter the Great. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/st-petersburg-founded-by-peter-the-great. Accessed May 23, 2013.