Congress authorizes survey of Cumberland Road. (2013). The History Channel website. Retrieved 9:08, May 19, 2013, from http://www.history.com/this-day-in-history/congress-authorizes-survey-of-cumberland-road.
Congress authorizes survey of Cumberland Road. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/congress-authorizes-survey-of-cumberland-road [Accessed 19 May 2013].
“Congress authorizes survey of Cumberland Road.” 2013. The History Channel website. May 19 2013, 9:08 http://www.history.com/this-day-in-history/congress-authorizes-survey-of-cumberland-road.
“Congress authorizes survey of Cumberland Road,” The History Channel website, 2013, http://www.history.com/this-day-in-history/congress-authorizes-survey-of-cumberland-road [accessed May 19, 2013].
“Congress authorizes survey of Cumberland Road,” The History Channel website, http://www.history.com/this-day-in-history/congress-authorizes-survey-of-cumberland-road (accessed May 19, 2013).
Congress authorizes survey of Cumberland Road [Internet]. The History Channel website; 2013 [cited 2013 May 19] Available from: http://www.history.com/this-day-in-history/congress-authorizes-survey-of-cumberland-road.
Congress authorizes survey of Cumberland Road, http://www.history.com/this-day-in-history/congress-authorizes-survey-of-cumberland-road (last visited May 19, 2013).
Congress authorizes survey of Cumberland Road. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/congress-authorizes-survey-of-cumberland-road. Accessed May 19, 2013.