International best-selling thriller writer Robert Ludlum is born. (2013). The History Channel website. Retrieved 12:21, June 19, 2013, from http://www.history.com/this-day-in-history/international-best-selling-thriller-writer-robert-ludlum-is-born.
International best-selling thriller writer Robert Ludlum is born. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/international-best-selling-thriller-writer-robert-ludlum-is-born [Accessed 19 Jun 2013].
“International best-selling thriller writer Robert Ludlum is born.” 2013. The History Channel website. Jun 19 2013, 12:21 http://www.history.com/this-day-in-history/international-best-selling-thriller-writer-robert-ludlum-is-born.
“International best-selling thriller writer Robert Ludlum is born,” The History Channel website, 2013, http://www.history.com/this-day-in-history/international-best-selling-thriller-writer-robert-ludlum-is-born [accessed Jun 19, 2013].
“International best-selling thriller writer Robert Ludlum is born,” The History Channel website, http://www.history.com/this-day-in-history/international-best-selling-thriller-writer-robert-ludlum-is-born (accessed Jun 19, 2013).
International best-selling thriller writer Robert Ludlum is born [Internet]. The History Channel website; 2013 [cited 2013 Jun 19] Available from: http://www.history.com/this-day-in-history/international-best-selling-thriller-writer-robert-ludlum-is-born.
International best-selling thriller writer Robert Ludlum is born, http://www.history.com/this-day-in-history/international-best-selling-thriller-writer-robert-ludlum-is-born (last visited Jun 19, 2013).
International best-selling thriller writer Robert Ludlum is born. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/international-best-selling-thriller-writer-robert-ludlum-is-born. Accessed Jun 19, 2013.