U.S. plane shot down over Laos. (2013). The History Channel website. Retrieved 12:00, May 25, 2013, from http://www.history.com/this-day-in-history/us-plane-shot-down-over-laos.
U.S. plane shot down over Laos. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/us-plane-shot-down-over-laos [Accessed 25 May 2013].
“U.S. plane shot down over Laos.” 2013. The History Channel website. May 25 2013, 12:00 http://www.history.com/this-day-in-history/us-plane-shot-down-over-laos.
“U.S. plane shot down over Laos,” The History Channel website, 2013, http://www.history.com/this-day-in-history/us-plane-shot-down-over-laos [accessed May 25, 2013].
“U.S. plane shot down over Laos,” The History Channel website, http://www.history.com/this-day-in-history/us-plane-shot-down-over-laos (accessed May 25, 2013).
U.S. plane shot down over Laos [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/us-plane-shot-down-over-laos.
U.S. plane shot down over Laos, http://www.history.com/this-day-in-history/us-plane-shot-down-over-laos (last visited May 25, 2013).
U.S. plane shot down over Laos. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/us-plane-shot-down-over-laos. Accessed May 25, 2013.