How The States Got Their Shapes: Living On The Edge. (2013). The History Channel website. Retrieved 12:25, May 24, 2013, from http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes.
How The States Got Their Shapes: Living On The Edge. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes [Accessed 24 May 2013].
“How The States Got Their Shapes: Living On The Edge.” 2013. The History Channel website. May 24 2013, 12:25 http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes.
“How The States Got Their Shapes: Living On The Edge,” The History Channel website, 2013, http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes [accessed May 24, 2013].
“How The States Got Their Shapes: Living On The Edge,” The History Channel website, http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes (accessed May 24, 2013).
How The States Got Their Shapes: Living On The Edge [Internet]. The History Channel website; 2013 [cited 2013 May 24] Available from: http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes.
How The States Got Their Shapes: Living On The Edge, http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes (last visited May 24, 2013).
How The States Got Their Shapes: Living On The Edge. The History Channel website. 2013. Available at: http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes. Accessed May 24, 2013.