The Titanic: Engineering Disaster. (2013). The History Channel website. Retrieved 6:29, June 19, 2013, from http://www.history.com/shows/modern-marvels/videos/playlists/engineering-disasters.
The Titanic: Engineering Disaster. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/shows/modern-marvels/videos/playlists/engineering-disasters [Accessed 19 Jun 2013].
“The Titanic: Engineering Disaster.” 2013. The History Channel website. Jun 19 2013, 6:29 http://www.history.com/shows/modern-marvels/videos/playlists/engineering-disasters.
“The Titanic: Engineering Disaster,” The History Channel website, 2013, http://www.history.com/shows/modern-marvels/videos/playlists/engineering-disasters [accessed Jun 19, 2013].
“The Titanic: Engineering Disaster,” The History Channel website, http://www.history.com/shows/modern-marvels/videos/playlists/engineering-disasters (accessed Jun 19, 2013).
The Titanic: Engineering Disaster [Internet]. The History Channel website; 2013 [cited 2013 Jun 19] Available from: http://www.history.com/shows/modern-marvels/videos/playlists/engineering-disasters.
The Titanic: Engineering Disaster, http://www.history.com/shows/modern-marvels/videos/playlists/engineering-disasters (last visited Jun 19, 2013).
The Titanic: Engineering Disaster. The History Channel website. 2013. Available at: http://www.history.com/shows/modern-marvels/videos/playlists/engineering-disasters. Accessed Jun 19, 2013.