General Motors buys Cadillac. (2013). The History Channel website. Retrieved 2:36, June 18, 2013, from http://www.history.com/this-day-in-history/general-motors-buys-cadillac.
General Motors buys Cadillac. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/general-motors-buys-cadillac [Accessed 18 Jun 2013].
“General Motors buys Cadillac.” 2013. The History Channel website. Jun 18 2013, 2:36 http://www.history.com/this-day-in-history/general-motors-buys-cadillac.
“General Motors buys Cadillac,” The History Channel website, 2013, http://www.history.com/this-day-in-history/general-motors-buys-cadillac [accessed Jun 18, 2013].
“General Motors buys Cadillac,” The History Channel website, http://www.history.com/this-day-in-history/general-motors-buys-cadillac (accessed Jun 18, 2013).
General Motors buys Cadillac [Internet]. The History Channel website; 2013 [cited 2013 Jun 18] Available from: http://www.history.com/this-day-in-history/general-motors-buys-cadillac.
General Motors buys Cadillac, http://www.history.com/this-day-in-history/general-motors-buys-cadillac (last visited Jun 18, 2013).
General Motors buys Cadillac. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/general-motors-buys-cadillac. Accessed Jun 18, 2013.