Know-Nothings convene in Philadelphia. (2013). The History Channel website. Retrieved 10:14, May 18, 2013, from http://www.history.com/this-day-in-history/know-nothings-convene-in-philadelphia.
Know-Nothings convene in Philadelphia. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/know-nothings-convene-in-philadelphia [Accessed 18 May 2013].
“Know-Nothings convene in Philadelphia.” 2013. The History Channel website. May 18 2013, 10:14 http://www.history.com/this-day-in-history/know-nothings-convene-in-philadelphia.
“Know-Nothings convene in Philadelphia,” The History Channel website, 2013, http://www.history.com/this-day-in-history/know-nothings-convene-in-philadelphia [accessed May 18, 2013].
“Know-Nothings convene in Philadelphia,” The History Channel website, http://www.history.com/this-day-in-history/know-nothings-convene-in-philadelphia (accessed May 18, 2013).
Know-Nothings convene in Philadelphia [Internet]. The History Channel website; 2013 [cited 2013 May 18] Available from: http://www.history.com/this-day-in-history/know-nothings-convene-in-philadelphia.
Know-Nothings convene in Philadelphia, http://www.history.com/this-day-in-history/know-nothings-convene-in-philadelphia (last visited May 18, 2013).
Know-Nothings convene in Philadelphia. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/know-nothings-convene-in-philadelphia. Accessed May 18, 2013.