Cattle pioneer Charles Goodnight dies. (2013). The History Channel website. Retrieved 1:32, May 25, 2013, from http://www.history.com/this-day-in-history/cattle-pioneer-charles-goodnight-dies.
Cattle pioneer Charles Goodnight dies. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/cattle-pioneer-charles-goodnight-dies [Accessed 25 May 2013].
“Cattle pioneer Charles Goodnight dies.” 2013. The History Channel website. May 25 2013, 1:32 http://www.history.com/this-day-in-history/cattle-pioneer-charles-goodnight-dies.
“Cattle pioneer Charles Goodnight dies,” The History Channel website, 2013, http://www.history.com/this-day-in-history/cattle-pioneer-charles-goodnight-dies [accessed May 25, 2013].
“Cattle pioneer Charles Goodnight dies,” The History Channel website, http://www.history.com/this-day-in-history/cattle-pioneer-charles-goodnight-dies (accessed May 25, 2013).
Cattle pioneer Charles Goodnight dies [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/cattle-pioneer-charles-goodnight-dies.
Cattle pioneer Charles Goodnight dies, http://www.history.com/this-day-in-history/cattle-pioneer-charles-goodnight-dies (last visited May 25, 2013).
Cattle pioneer Charles Goodnight dies. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/cattle-pioneer-charles-goodnight-dies. Accessed May 25, 2013.