Gulf of Tonkin Incident. (2013). The History Channel website. Retrieved 9:50, May 19, 2013, from http://www.history.com/speeches/gulf-of-tonkin-incident.
Gulf of Tonkin Incident. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/speeches/gulf-of-tonkin-incident [Accessed 19 May 2013].
“Gulf of Tonkin Incident.” 2013. The History Channel website. May 19 2013, 9:50 http://www.history.com/speeches/gulf-of-tonkin-incident.
“Gulf of Tonkin Incident,” The History Channel website, 2013, http://www.history.com/speeches/gulf-of-tonkin-incident [accessed May 19, 2013].
“Gulf of Tonkin Incident,” The History Channel website, http://www.history.com/speeches/gulf-of-tonkin-incident (accessed May 19, 2013).
Gulf of Tonkin Incident [Internet]. The History Channel website; 2013 [cited 2013 May 19] Available from: http://www.history.com/speeches/gulf-of-tonkin-incident.
Gulf of Tonkin Incident, http://www.history.com/speeches/gulf-of-tonkin-incident (last visited May 19, 2013).
Gulf of Tonkin Incident. The History Channel website. 2013. Available at: http://www.history.com/speeches/gulf-of-tonkin-incident. Accessed May 19, 2013.