U.S. government takes over control of nation's railroads. (2013). The History Channel website. Retrieved 6:35, May 23, 2013, from http://www.history.com/this-day-in-history/us-government-takes-over-control-of-nations-railroads.
U.S. government takes over control of nation's railroads. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/us-government-takes-over-control-of-nations-railroads [Accessed 23 May 2013].
“U.S. government takes over control of nation's railroads.” 2013. The History Channel website. May 23 2013, 6:35 http://www.history.com/this-day-in-history/us-government-takes-over-control-of-nations-railroads.
“U.S. government takes over control of nation's railroads,” The History Channel website, 2013, http://www.history.com/this-day-in-history/us-government-takes-over-control-of-nations-railroads [accessed May 23, 2013].
“U.S. government takes over control of nation's railroads,” The History Channel website, http://www.history.com/this-day-in-history/us-government-takes-over-control-of-nations-railroads (accessed May 23, 2013).
U.S. government takes over control of nation's railroads [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/us-government-takes-over-control-of-nations-railroads.
U.S. government takes over control of nation's railroads, http://www.history.com/this-day-in-history/us-government-takes-over-control-of-nations-railroads (last visited May 23, 2013).
U.S. government takes over control of nation's railroads. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/us-government-takes-over-control-of-nations-railroads. Accessed May 23, 2013.