George W. Bush signs the Patriot Act. (2013). The History Channel website. Retrieved 1:57, May 21, 2013, from http://www.history.com/this-day-in-history/george-w-bush-signs-the-patriot-act.
George W. Bush signs the Patriot Act. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/george-w-bush-signs-the-patriot-act [Accessed 21 May 2013].
“George W. Bush signs the Patriot Act.” 2013. The History Channel website. May 21 2013, 1:57 http://www.history.com/this-day-in-history/george-w-bush-signs-the-patriot-act.
“George W. Bush signs the Patriot Act,” The History Channel website, 2013, http://www.history.com/this-day-in-history/george-w-bush-signs-the-patriot-act [accessed May 21, 2013].
“George W. Bush signs the Patriot Act,” The History Channel website, http://www.history.com/this-day-in-history/george-w-bush-signs-the-patriot-act (accessed May 21, 2013).
George W. Bush signs the Patriot Act [Internet]. The History Channel website; 2013 [cited 2013 May 21] Available from: http://www.history.com/this-day-in-history/george-w-bush-signs-the-patriot-act.
George W. Bush signs the Patriot Act, http://www.history.com/this-day-in-history/george-w-bush-signs-the-patriot-act (last visited May 21, 2013).
George W. Bush signs the Patriot Act. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/george-w-bush-signs-the-patriot-act. Accessed May 21, 2013.