How the States Got Their Shapes: Rich vs. Poor. (2013). The History Channel website. Retrieved 1:58, June 19, 2013, from http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes.
How the States Got Their Shapes: Rich vs. Poor. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes [Accessed 19 Jun 2013].
“How the States Got Their Shapes: Rich vs. Poor.” 2013. The History Channel website. Jun 19 2013, 1:58 http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes.
“How the States Got Their Shapes: Rich vs. Poor,” The History Channel website, 2013, http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes [accessed Jun 19, 2013].
“How the States Got Their Shapes: Rich vs. Poor,” The History Channel website, http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes (accessed Jun 19, 2013).
How the States Got Their Shapes: Rich vs. Poor [Internet]. The History Channel website; 2013 [cited 2013 Jun 19] Available from: http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes.
How the States Got Their Shapes: Rich vs. Poor, http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes (last visited Jun 19, 2013).
How the States Got Their Shapes: Rich vs. Poor. The History Channel website. 2013. Available at: http://www.history.com/shows/how-the-states-got-their-shapes/videos/playlists/full-episodes. Accessed Jun 19, 2013.