Western Union completes the first transcontinental telegraph line. (2013). The History Channel website. Retrieved 10:07, May 18, 2013, from http://www.history.com/this-day-in-history/western-union-completes-the-first-transcontinental-telegraph-line.
Western Union completes the first transcontinental telegraph line. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/western-union-completes-the-first-transcontinental-telegraph-line [Accessed 18 May 2013].
“Western Union completes the first transcontinental telegraph line.” 2013. The History Channel website. May 18 2013, 10:07 http://www.history.com/this-day-in-history/western-union-completes-the-first-transcontinental-telegraph-line.
“Western Union completes the first transcontinental telegraph line,” The History Channel website, 2013, http://www.history.com/this-day-in-history/western-union-completes-the-first-transcontinental-telegraph-line [accessed May 18, 2013].
“Western Union completes the first transcontinental telegraph line,” The History Channel website, http://www.history.com/this-day-in-history/western-union-completes-the-first-transcontinental-telegraph-line (accessed May 18, 2013).
Western Union completes the first transcontinental telegraph line [Internet]. The History Channel website; 2013 [cited 2013 May 18] Available from: http://www.history.com/this-day-in-history/western-union-completes-the-first-transcontinental-telegraph-line.
Western Union completes the first transcontinental telegraph line, http://www.history.com/this-day-in-history/western-union-completes-the-first-transcontinental-telegraph-line (last visited May 18, 2013).
Western Union completes the first transcontinental telegraph line. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/western-union-completes-the-first-transcontinental-telegraph-line. Accessed May 18, 2013.