United States conducts first test of the atomic bomb. (2013). The History Channel website. Retrieved 12:06, May 20, 2013, from http://www.history.com/this-day-in-history/united-states-conducts-first-test-of-the-atomic-bomb.
United States conducts first test of the atomic bomb. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/united-states-conducts-first-test-of-the-atomic-bomb [Accessed 20 May 2013].
“United States conducts first test of the atomic bomb.” 2013. The History Channel website. May 20 2013, 12:06 http://www.history.com/this-day-in-history/united-states-conducts-first-test-of-the-atomic-bomb.
“United States conducts first test of the atomic bomb,” The History Channel website, 2013, http://www.history.com/this-day-in-history/united-states-conducts-first-test-of-the-atomic-bomb [accessed May 20, 2013].
“United States conducts first test of the atomic bomb,” The History Channel website, http://www.history.com/this-day-in-history/united-states-conducts-first-test-of-the-atomic-bomb (accessed May 20, 2013).
United States conducts first test of the atomic bomb [Internet]. The History Channel website; 2013 [cited 2013 May 20] Available from: http://www.history.com/this-day-in-history/united-states-conducts-first-test-of-the-atomic-bomb.
United States conducts first test of the atomic bomb, http://www.history.com/this-day-in-history/united-states-conducts-first-test-of-the-atomic-bomb (last visited May 20, 2013).
United States conducts first test of the atomic bomb. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/united-states-conducts-first-test-of-the-atomic-bomb. Accessed May 20, 2013.