First Academy Awards ceremony. (2013). The History Channel website. Retrieved 4:05, May 18, 2013, from http://www.history.com/this-day-in-history/first-academy-awards.
First Academy Awards ceremony. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/first-academy-awards [Accessed 18 May 2013].
“First Academy Awards ceremony.” 2013. The History Channel website. May 18 2013, 4:05 http://www.history.com/this-day-in-history/first-academy-awards.
“First Academy Awards ceremony,” The History Channel website, 2013, http://www.history.com/this-day-in-history/first-academy-awards [accessed May 18, 2013].
“First Academy Awards ceremony,” The History Channel website, http://www.history.com/this-day-in-history/first-academy-awards (accessed May 18, 2013).
First Academy Awards ceremony [Internet]. The History Channel website; 2013 [cited 2013 May 18] Available from: http://www.history.com/this-day-in-history/first-academy-awards.
First Academy Awards ceremony, http://www.history.com/this-day-in-history/first-academy-awards (last visited May 18, 2013).
First Academy Awards ceremony. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/first-academy-awards. Accessed May 18, 2013.