Astronomer Galileo dies in Italy. (2013). The History Channel website. Retrieved 1:35, May 22, 2013, from http://www.history.com/this-day-in-history/astronomer-galileo-dies-in-italy.
Astronomer Galileo dies in Italy. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/astronomer-galileo-dies-in-italy [Accessed 22 May 2013].
“Astronomer Galileo dies in Italy.” 2013. The History Channel website. May 22 2013, 1:35 http://www.history.com/this-day-in-history/astronomer-galileo-dies-in-italy.
“Astronomer Galileo dies in Italy,” The History Channel website, 2013, http://www.history.com/this-day-in-history/astronomer-galileo-dies-in-italy [accessed May 22, 2013].
“Astronomer Galileo dies in Italy,” The History Channel website, http://www.history.com/this-day-in-history/astronomer-galileo-dies-in-italy (accessed May 22, 2013).
Astronomer Galileo dies in Italy [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/astronomer-galileo-dies-in-italy.
Astronomer Galileo dies in Italy, http://www.history.com/this-day-in-history/astronomer-galileo-dies-in-italy (last visited May 22, 2013).
Astronomer Galileo dies in Italy. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/astronomer-galileo-dies-in-italy. Accessed May 22, 2013.