Viewing a Solar Eclipse. (2013). The History Channel website. Retrieved 3:11, June 19, 2013, from http://www.history.com/shows/the-universe/videos/playlists/backyard-astronomer.
Viewing a Solar Eclipse. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/shows/the-universe/videos/playlists/backyard-astronomer [Accessed 19 Jun 2013].
“Viewing a Solar Eclipse.” 2013. The History Channel website. Jun 19 2013, 3:11 http://www.history.com/shows/the-universe/videos/playlists/backyard-astronomer.
“Viewing a Solar Eclipse,” The History Channel website, 2013, http://www.history.com/shows/the-universe/videos/playlists/backyard-astronomer [accessed Jun 19, 2013].
“Viewing a Solar Eclipse,” The History Channel website, http://www.history.com/shows/the-universe/videos/playlists/backyard-astronomer (accessed Jun 19, 2013).
Viewing a Solar Eclipse [Internet]. The History Channel website; 2013 [cited 2013 Jun 19] Available from: http://www.history.com/shows/the-universe/videos/playlists/backyard-astronomer.
Viewing a Solar Eclipse, http://www.history.com/shows/the-universe/videos/playlists/backyard-astronomer (last visited Jun 19, 2013).
Viewing a Solar Eclipse. The History Channel website. 2013. Available at: http://www.history.com/shows/the-universe/videos/playlists/backyard-astronomer. Accessed Jun 19, 2013.