How the Lunar Landing Site Was Chosen. (2013). The History Channel website. Retrieved 11:58, May 23, 2013, from http://www.history.com/videos/how-the-lunar-landing-site-was-chosen.
How the Lunar Landing Site Was Chosen. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/videos/how-the-lunar-landing-site-was-chosen [Accessed 23 May 2013].
“How the Lunar Landing Site Was Chosen.” 2013. The History Channel website. May 23 2013, 11:58 http://www.history.com/videos/how-the-lunar-landing-site-was-chosen.
“How the Lunar Landing Site Was Chosen,” The History Channel website, 2013, http://www.history.com/videos/how-the-lunar-landing-site-was-chosen [accessed May 23, 2013].
“How the Lunar Landing Site Was Chosen,” The History Channel website, http://www.history.com/videos/how-the-lunar-landing-site-was-chosen (accessed May 23, 2013).
How the Lunar Landing Site Was Chosen [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/videos/how-the-lunar-landing-site-was-chosen.
How the Lunar Landing Site Was Chosen, http://www.history.com/videos/how-the-lunar-landing-site-was-chosen (last visited May 23, 2013).
How the Lunar Landing Site Was Chosen. The History Channel website. 2013. Available at: http://www.history.com/videos/how-the-lunar-landing-site-was-chosen. Accessed May 23, 2013.