Dan Jansen skates world-record 500 meters. (2013). The History Channel website. Retrieved 5:28, May 26, 2013, from http://www.history.com/this-day-in-history/dan-jansen-skates-world-record-500-meters.
Dan Jansen skates world-record 500 meters. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/dan-jansen-skates-world-record-500-meters [Accessed 26 May 2013].
“Dan Jansen skates world-record 500 meters.” 2013. The History Channel website. May 26 2013, 5:28 http://www.history.com/this-day-in-history/dan-jansen-skates-world-record-500-meters.
“Dan Jansen skates world-record 500 meters,” The History Channel website, 2013, http://www.history.com/this-day-in-history/dan-jansen-skates-world-record-500-meters [accessed May 26, 2013].
“Dan Jansen skates world-record 500 meters,” The History Channel website, http://www.history.com/this-day-in-history/dan-jansen-skates-world-record-500-meters (accessed May 26, 2013).
Dan Jansen skates world-record 500 meters [Internet]. The History Channel website; 2013 [cited 2013 May 26] Available from: http://www.history.com/this-day-in-history/dan-jansen-skates-world-record-500-meters.
Dan Jansen skates world-record 500 meters, http://www.history.com/this-day-in-history/dan-jansen-skates-world-record-500-meters (last visited May 26, 2013).
Dan Jansen skates world-record 500 meters. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/dan-jansen-skates-world-record-500-meters. Accessed May 26, 2013.