First Indianapolis 500 is run. (2013). The History Channel website. Retrieved 12:05, May 20, 2013, from http://www.history.com/this-day-in-history/first-indianapolis-500-is-run.
First Indianapolis 500 is run. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/first-indianapolis-500-is-run [Accessed 20 May 2013].
“First Indianapolis 500 is run.” 2013. The History Channel website. May 20 2013, 12:05 http://www.history.com/this-day-in-history/first-indianapolis-500-is-run.
“First Indianapolis 500 is run,” The History Channel website, 2013, http://www.history.com/this-day-in-history/first-indianapolis-500-is-run [accessed May 20, 2013].
“First Indianapolis 500 is run,” The History Channel website, http://www.history.com/this-day-in-history/first-indianapolis-500-is-run (accessed May 20, 2013).
First Indianapolis 500 is run [Internet]. The History Channel website; 2013 [cited 2013 May 20] Available from: http://www.history.com/this-day-in-history/first-indianapolis-500-is-run.
First Indianapolis 500 is run, http://www.history.com/this-day-in-history/first-indianapolis-500-is-run (last visited May 20, 2013).
First Indianapolis 500 is run. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/first-indianapolis-500-is-run. Accessed May 20, 2013.