The Secrets of Meteorites. (2013). The History Channel website. Retrieved 3:27, May 25, 2013, from http://www.history.com/shows/how-the-earth-was-made/videos/playlists/web-exclusives.
The Secrets of Meteorites. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/shows/how-the-earth-was-made/videos/playlists/web-exclusives [Accessed 25 May 2013].
“The Secrets of Meteorites.” 2013. The History Channel website. May 25 2013, 3:27 http://www.history.com/shows/how-the-earth-was-made/videos/playlists/web-exclusives.
“The Secrets of Meteorites,” The History Channel website, 2013, http://www.history.com/shows/how-the-earth-was-made/videos/playlists/web-exclusives [accessed May 25, 2013].
“The Secrets of Meteorites,” The History Channel website, http://www.history.com/shows/how-the-earth-was-made/videos/playlists/web-exclusives (accessed May 25, 2013).
The Secrets of Meteorites [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/shows/how-the-earth-was-made/videos/playlists/web-exclusives.
The Secrets of Meteorites, http://www.history.com/shows/how-the-earth-was-made/videos/playlists/web-exclusives (last visited May 25, 2013).
The Secrets of Meteorites. The History Channel website. 2013. Available at: http://www.history.com/shows/how-the-earth-was-made/videos/playlists/web-exclusives. Accessed May 25, 2013.