Native Americans are massacred at Sand Creek, Colorado. (2013). The History Channel website. Retrieved 5:02, June 20, 2013, from http://www.history.com/this-day-in-history/-sand-creek-massacre.
Native Americans are massacred at Sand Creek, Colorado. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/-sand-creek-massacre [Accessed 20 Jun 2013].
“Native Americans are massacred at Sand Creek, Colorado.” 2013. The History Channel website. Jun 20 2013, 5:02 http://www.history.com/this-day-in-history/-sand-creek-massacre.
“Native Americans are massacred at Sand Creek, Colorado,” The History Channel website, 2013, http://www.history.com/this-day-in-history/-sand-creek-massacre [accessed Jun 20, 2013].
“Native Americans are massacred at Sand Creek, Colorado,” The History Channel website, http://www.history.com/this-day-in-history/-sand-creek-massacre (accessed Jun 20, 2013).
Native Americans are massacred at Sand Creek, Colorado [Internet]. The History Channel website; 2013 [cited 2013 Jun 20] Available from: http://www.history.com/this-day-in-history/-sand-creek-massacre.
Native Americans are massacred at Sand Creek, Colorado, http://www.history.com/this-day-in-history/-sand-creek-massacre (last visited Jun 20, 2013).
Native Americans are massacred at Sand Creek, Colorado. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/-sand-creek-massacre. Accessed Jun 20, 2013.