The steamboat Yellowstone heads for Montana. (2013). The History Channel website. Retrieved 6:58, May 22, 2013, from http://www.history.com/this-day-in-history/the-steamboat-yellowstone-heads-for-montana.
The steamboat Yellowstone heads for Montana. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/the-steamboat-yellowstone-heads-for-montana [Accessed 22 May 2013].
“The steamboat Yellowstone heads for Montana.” 2013. The History Channel website. May 22 2013, 6:58 http://www.history.com/this-day-in-history/the-steamboat-yellowstone-heads-for-montana.
“The steamboat Yellowstone heads for Montana,” The History Channel website, 2013, http://www.history.com/this-day-in-history/the-steamboat-yellowstone-heads-for-montana [accessed May 22, 2013].
“The steamboat Yellowstone heads for Montana,” The History Channel website, http://www.history.com/this-day-in-history/the-steamboat-yellowstone-heads-for-montana (accessed May 22, 2013).
The steamboat Yellowstone heads for Montana [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/the-steamboat-yellowstone-heads-for-montana.
The steamboat Yellowstone heads for Montana, http://www.history.com/this-day-in-history/the-steamboat-yellowstone-heads-for-montana (last visited May 22, 2013).
The steamboat Yellowstone heads for Montana. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/the-steamboat-yellowstone-heads-for-montana. Accessed May 22, 2013.