A River Runs Through It. (2013). The History Channel website. Retrieved 2:24, May 18, 2013, from http://www.history.com/shows/how-the-states-got-their-shapes/episodes/season-1.
A River Runs Through It. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/shows/how-the-states-got-their-shapes/episodes/season-1 [Accessed 18 May 2013].
“A River Runs Through It.” 2013. The History Channel website. May 18 2013, 2:24 http://www.history.com/shows/how-the-states-got-their-shapes/episodes/season-1.
“A River Runs Through It,” The History Channel website, 2013, http://www.history.com/shows/how-the-states-got-their-shapes/episodes/season-1 [accessed May 18, 2013].
“A River Runs Through It,” The History Channel website, http://www.history.com/shows/how-the-states-got-their-shapes/episodes/season-1 (accessed May 18, 2013).
A River Runs Through It [Internet]. The History Channel website; 2013 [cited 2013 May 18] Available from: http://www.history.com/shows/how-the-states-got-their-shapes/episodes/season-1.
A River Runs Through It, http://www.history.com/shows/how-the-states-got-their-shapes/episodes/season-1 (last visited May 18, 2013).
A River Runs Through It. The History Channel website. 2013. Available at: http://www.history.com/shows/how-the-states-got-their-shapes/episodes/season-1. Accessed May 18, 2013.