Great Northeast Blackout Hits the United States. (2013). The History Channel website. Retrieved 3:12, May 23, 2013, from http://www.history.com/speeches/great-northeast-blackout-hits-us.
Great Northeast Blackout Hits the United States. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/speeches/great-northeast-blackout-hits-us [Accessed 23 May 2013].
“Great Northeast Blackout Hits the United States.” 2013. The History Channel website. May 23 2013, 3:12 http://www.history.com/speeches/great-northeast-blackout-hits-us.
“Great Northeast Blackout Hits the United States,” The History Channel website, 2013, http://www.history.com/speeches/great-northeast-blackout-hits-us [accessed May 23, 2013].
“Great Northeast Blackout Hits the United States,” The History Channel website, http://www.history.com/speeches/great-northeast-blackout-hits-us (accessed May 23, 2013).
Great Northeast Blackout Hits the United States [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/speeches/great-northeast-blackout-hits-us.
Great Northeast Blackout Hits the United States, http://www.history.com/speeches/great-northeast-blackout-hits-us (last visited May 23, 2013).
Great Northeast Blackout Hits the United States. The History Channel website. 2013. Available at: http://www.history.com/speeches/great-northeast-blackout-hits-us. Accessed May 23, 2013.