First Academy Awards ceremony. (2013). The History Channel website. Retrieved 3:56, June 19, 2013, from http://www.history.com/this-day-in-history/first-academy-awards-ceremony.
First Academy Awards ceremony. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/first-academy-awards-ceremony [Accessed 19 Jun 2013].
“First Academy Awards ceremony.” 2013. The History Channel website. Jun 19 2013, 3:56 http://www.history.com/this-day-in-history/first-academy-awards-ceremony.
“First Academy Awards ceremony,” The History Channel website, 2013, http://www.history.com/this-day-in-history/first-academy-awards-ceremony [accessed Jun 19, 2013].
“First Academy Awards ceremony,” The History Channel website, http://www.history.com/this-day-in-history/first-academy-awards-ceremony (accessed Jun 19, 2013).
First Academy Awards ceremony [Internet]. The History Channel website; 2013 [cited 2013 Jun 19] Available from: http://www.history.com/this-day-in-history/first-academy-awards-ceremony.
First Academy Awards ceremony, http://www.history.com/this-day-in-history/first-academy-awards-ceremony (last visited Jun 19, 2013).
First Academy Awards ceremony. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/first-academy-awards-ceremony. Accessed Jun 19, 2013.