Three Things You Didn't Know About: Acid. (2013). The History Channel website. Retrieved 11:00, May 23, 2013, from http://www.history.com/shows/modern-marvels/videos/playlists/three-things-you-didnt-know-about.
Three Things You Didn't Know About: Acid. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/shows/modern-marvels/videos/playlists/three-things-you-didnt-know-about [Accessed 23 May 2013].
“Three Things You Didn't Know About: Acid.” 2013. The History Channel website. May 23 2013, 11:00 http://www.history.com/shows/modern-marvels/videos/playlists/three-things-you-didnt-know-about.
“Three Things You Didn't Know About: Acid,” The History Channel website, 2013, http://www.history.com/shows/modern-marvels/videos/playlists/three-things-you-didnt-know-about [accessed May 23, 2013].
“Three Things You Didn't Know About: Acid,” The History Channel website, http://www.history.com/shows/modern-marvels/videos/playlists/three-things-you-didnt-know-about (accessed May 23, 2013).
Three Things You Didn't Know About: Acid [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/shows/modern-marvels/videos/playlists/three-things-you-didnt-know-about.
Three Things You Didn't Know About: Acid, http://www.history.com/shows/modern-marvels/videos/playlists/three-things-you-didnt-know-about (last visited May 23, 2013).
Three Things You Didn't Know About: Acid. The History Channel website. 2013. Available at: http://www.history.com/shows/modern-marvels/videos/playlists/three-things-you-didnt-know-about. Accessed May 23, 2013.