Charles Kettering receives patent for electric self-starter. (2013). The History Channel website. Retrieved 2:56, May 22, 2013, from http://www.history.com/this-day-in-history/charles-kettering-receives-patent-for-electric-self-starter.
Charles Kettering receives patent for electric self-starter. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/charles-kettering-receives-patent-for-electric-self-starter [Accessed 22 May 2013].
“Charles Kettering receives patent for electric self-starter.” 2013. The History Channel website. May 22 2013, 2:56 http://www.history.com/this-day-in-history/charles-kettering-receives-patent-for-electric-self-starter.
“Charles Kettering receives patent for electric self-starter,” The History Channel website, 2013, http://www.history.com/this-day-in-history/charles-kettering-receives-patent-for-electric-self-starter [accessed May 22, 2013].
“Charles Kettering receives patent for electric self-starter,” The History Channel website, http://www.history.com/this-day-in-history/charles-kettering-receives-patent-for-electric-self-starter (accessed May 22, 2013).
Charles Kettering receives patent for electric self-starter [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/charles-kettering-receives-patent-for-electric-self-starter.
Charles Kettering receives patent for electric self-starter, http://www.history.com/this-day-in-history/charles-kettering-receives-patent-for-electric-self-starter (last visited May 22, 2013).
Charles Kettering receives patent for electric self-starter. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/charles-kettering-receives-patent-for-electric-self-starter. Accessed May 22, 2013.