On the Road with Libby O'Connell: Chicago's Historic Water Tower. (2013). The History Channel website. Retrieved 6:52, May 19, 2013, from http://www.history.com/shows/classroom/videos/playlists/on-the-road-with-libby-oconnell.
On the Road with Libby O'Connell: Chicago's Historic Water Tower. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/shows/classroom/videos/playlists/on-the-road-with-libby-oconnell [Accessed 19 May 2013].
“On the Road with Libby O'Connell: Chicago's Historic Water Tower.” 2013. The History Channel website. May 19 2013, 6:52 http://www.history.com/shows/classroom/videos/playlists/on-the-road-with-libby-oconnell.
“On the Road with Libby O'Connell: Chicago's Historic Water Tower,” The History Channel website, 2013, http://www.history.com/shows/classroom/videos/playlists/on-the-road-with-libby-oconnell [accessed May 19, 2013].
“On the Road with Libby O'Connell: Chicago's Historic Water Tower,” The History Channel website, http://www.history.com/shows/classroom/videos/playlists/on-the-road-with-libby-oconnell (accessed May 19, 2013).
On the Road with Libby O'Connell: Chicago's Historic Water Tower [Internet]. The History Channel website; 2013 [cited 2013 May 19] Available from: http://www.history.com/shows/classroom/videos/playlists/on-the-road-with-libby-oconnell.
On the Road with Libby O'Connell: Chicago's Historic Water Tower, http://www.history.com/shows/classroom/videos/playlists/on-the-road-with-libby-oconnell (last visited May 19, 2013).
On the Road with Libby O'Connell: Chicago's Historic Water Tower. The History Channel website. 2013. Available at: http://www.history.com/shows/classroom/videos/playlists/on-the-road-with-libby-oconnell. Accessed May 19, 2013.