The Universe: Life and Death of a Star. (2013). The History Channel website. Retrieved 9:57, May 21, 2013, from http://www.history.com/shows/the-universe/videos/playlists/full-episodes.
The Universe: Life and Death of a Star. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/shows/the-universe/videos/playlists/full-episodes [Accessed 21 May 2013].
“The Universe: Life and Death of a Star.” 2013. The History Channel website. May 21 2013, 9:57 http://www.history.com/shows/the-universe/videos/playlists/full-episodes.
“The Universe: Life and Death of a Star,” The History Channel website, 2013, http://www.history.com/shows/the-universe/videos/playlists/full-episodes [accessed May 21, 2013].
“The Universe: Life and Death of a Star,” The History Channel website, http://www.history.com/shows/the-universe/videos/playlists/full-episodes (accessed May 21, 2013).
The Universe: Life and Death of a Star [Internet]. The History Channel website; 2013 [cited 2013 May 21] Available from: http://www.history.com/shows/the-universe/videos/playlists/full-episodes.
The Universe: Life and Death of a Star, http://www.history.com/shows/the-universe/videos/playlists/full-episodes (last visited May 21, 2013).
The Universe: Life and Death of a Star. The History Channel website. 2013. Available at: http://www.history.com/shows/the-universe/videos/playlists/full-episodes. Accessed May 21, 2013.