Library of Congress established. (2013). The History Channel website. Retrieved 1:01, May 23, 2013, from http://www.history.com/this-day-in-history/library-of-congress-established.
Library of Congress established. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/library-of-congress-established [Accessed 23 May 2013].
“Library of Congress established.” 2013. The History Channel website. May 23 2013, 1:01 http://www.history.com/this-day-in-history/library-of-congress-established.
“Library of Congress established,” The History Channel website, 2013, http://www.history.com/this-day-in-history/library-of-congress-established [accessed May 23, 2013].
“Library of Congress established,” The History Channel website, http://www.history.com/this-day-in-history/library-of-congress-established (accessed May 23, 2013).
Library of Congress established [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/library-of-congress-established.
Library of Congress established, http://www.history.com/this-day-in-history/library-of-congress-established (last visited May 23, 2013).
Library of Congress established. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/library-of-congress-established. Accessed May 23, 2013.