Nevada is site of first-ever underground nuclear explosion. (2013). The History Channel website. Retrieved 11:43, May 25, 2013, from http://www.history.com/this-day-in-history/nevada-is-site-of-first-ever-underground-nuclear-explosion.
Nevada is site of first-ever underground nuclear explosion. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/nevada-is-site-of-first-ever-underground-nuclear-explosion [Accessed 25 May 2013].
“Nevada is site of first-ever underground nuclear explosion.” 2013. The History Channel website. May 25 2013, 11:43 http://www.history.com/this-day-in-history/nevada-is-site-of-first-ever-underground-nuclear-explosion.
“Nevada is site of first-ever underground nuclear explosion,” The History Channel website, 2013, http://www.history.com/this-day-in-history/nevada-is-site-of-first-ever-underground-nuclear-explosion [accessed May 25, 2013].
“Nevada is site of first-ever underground nuclear explosion,” The History Channel website, http://www.history.com/this-day-in-history/nevada-is-site-of-first-ever-underground-nuclear-explosion (accessed May 25, 2013).
Nevada is site of first-ever underground nuclear explosion [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/nevada-is-site-of-first-ever-underground-nuclear-explosion.
Nevada is site of first-ever underground nuclear explosion, http://www.history.com/this-day-in-history/nevada-is-site-of-first-ever-underground-nuclear-explosion (last visited May 25, 2013).
Nevada is site of first-ever underground nuclear explosion. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/nevada-is-site-of-first-ever-underground-nuclear-explosion. Accessed May 25, 2013.