John Denver dies in an aircraft accident. (2013). The History Channel website. Retrieved 4:22, May 18, 2013, from http://www.history.com/this-day-in-history/john-denver-dies-in-an-ultra-light-aircraft-accident.
John Denver dies in an aircraft accident. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/john-denver-dies-in-an-ultra-light-aircraft-accident [Accessed 18 May 2013].
“John Denver dies in an aircraft accident.” 2013. The History Channel website. May 18 2013, 4:22 http://www.history.com/this-day-in-history/john-denver-dies-in-an-ultra-light-aircraft-accident.
“John Denver dies in an aircraft accident,” The History Channel website, 2013, http://www.history.com/this-day-in-history/john-denver-dies-in-an-ultra-light-aircraft-accident [accessed May 18, 2013].
“John Denver dies in an aircraft accident,” The History Channel website, http://www.history.com/this-day-in-history/john-denver-dies-in-an-ultra-light-aircraft-accident (accessed May 18, 2013).
John Denver dies in an aircraft accident [Internet]. The History Channel website; 2013 [cited 2013 May 18] Available from: http://www.history.com/this-day-in-history/john-denver-dies-in-an-ultra-light-aircraft-accident.
John Denver dies in an aircraft accident, http://www.history.com/this-day-in-history/john-denver-dies-in-an-ultra-light-aircraft-accident (last visited May 18, 2013).
John Denver dies in an aircraft accident. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/john-denver-dies-in-an-ultra-light-aircraft-accident. Accessed May 18, 2013.