Discoverer of Tombstone begins prospecting. (2013). The History Channel website. Retrieved 8:00, June 18, 2013, from http://www.history.com/this-day-in-history/discoverer-of-tombstone-begins-prospecting.
Discoverer of Tombstone begins prospecting. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/discoverer-of-tombstone-begins-prospecting [Accessed 18 Jun 2013].
“Discoverer of Tombstone begins prospecting.” 2013. The History Channel website. Jun 18 2013, 8:00 http://www.history.com/this-day-in-history/discoverer-of-tombstone-begins-prospecting.
“Discoverer of Tombstone begins prospecting,” The History Channel website, 2013, http://www.history.com/this-day-in-history/discoverer-of-tombstone-begins-prospecting [accessed Jun 18, 2013].
“Discoverer of Tombstone begins prospecting,” The History Channel website, http://www.history.com/this-day-in-history/discoverer-of-tombstone-begins-prospecting (accessed Jun 18, 2013).
Discoverer of Tombstone begins prospecting [Internet]. The History Channel website; 2013 [cited 2013 Jun 18] Available from: http://www.history.com/this-day-in-history/discoverer-of-tombstone-begins-prospecting.
Discoverer of Tombstone begins prospecting, http://www.history.com/this-day-in-history/discoverer-of-tombstone-begins-prospecting (last visited Jun 18, 2013).
Discoverer of Tombstone begins prospecting. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/discoverer-of-tombstone-begins-prospecting. Accessed Jun 18, 2013.