A thousand pioneers head West on the Oregon Trail. (2013). The History Channel website. Retrieved 4:34, May 18, 2013, from http://www.history.com/this-day-in-history/a-thousand-pioneers-head-west-on-the-oregon-trail.
A thousand pioneers head West on the Oregon Trail. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/a-thousand-pioneers-head-west-on-the-oregon-trail [Accessed 18 May 2013].
“A thousand pioneers head West on the Oregon Trail.” 2013. The History Channel website. May 18 2013, 4:34 http://www.history.com/this-day-in-history/a-thousand-pioneers-head-west-on-the-oregon-trail.
“A thousand pioneers head West on the Oregon Trail,” The History Channel website, 2013, http://www.history.com/this-day-in-history/a-thousand-pioneers-head-west-on-the-oregon-trail [accessed May 18, 2013].
“A thousand pioneers head West on the Oregon Trail,” The History Channel website, http://www.history.com/this-day-in-history/a-thousand-pioneers-head-west-on-the-oregon-trail (accessed May 18, 2013).
A thousand pioneers head West on the Oregon Trail [Internet]. The History Channel website; 2013 [cited 2013 May 18] Available from: http://www.history.com/this-day-in-history/a-thousand-pioneers-head-west-on-the-oregon-trail.
A thousand pioneers head West on the Oregon Trail, http://www.history.com/this-day-in-history/a-thousand-pioneers-head-west-on-the-oregon-trail (last visited May 18, 2013).
A thousand pioneers head West on the Oregon Trail. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/a-thousand-pioneers-head-west-on-the-oregon-trail. Accessed May 18, 2013.